Engineering 1921 Jul-Dec: Index: General Index

Engineering 1921 Jul-Dec: General Index.

Note: This is a sub-section of Engineering 1921 Jul-Dec: Index

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GENERAL INDEX

Al Manufacturing Co., Seam Welding Machines, 470*
Abell, Sir W. S., System of Double Bottom Construction, 72* ; on Maritime Risks, 668
Abrasion Tests of Materials, 12
Absorption and Radiation by Atoms, 468

Accidents :

Airship R. 38 (Z.R. 2), Loss of, 320, 545. See 347, 651
Chemical Works, Accidents in, 190
Colliery Accidents, Effect of Legislation, 418
Explosion, Boiler. See Boiler Explosion and PARAGRAPH INDEX
Brewing Copper, 343
Fertiliser Filter, 742
German Nitrogen Fixation Plant, 443
Laundry Calender, 583
Steam Chest on Trawler, 711
Pipes, Water Hammer Action, 102, 839
Stop Valve of Steam Hammer, 537. See Erratum, 570
Vulcanising Pan, 236
Yarn Drying Cylinder, 217
Explosives, Accidents in Manufacture and Use, 109
Industrial Accidents, Carbon Monoxide
Poisoning, 259. See 319
Report on, 224
Railway Accidents, Possible Prevention, 891
Shipping Accidents, Analysis of, 668 Slipway, Ship Repairing, Liability for Accidents, 608
Turbine, Steam, Bursting of Rotor Wheel, 829

Accounts, Engineering, Four-Week Period, 894
Accumulators, Electric, See Electric Accumulator Vehicles. See Motor Lorries
Acetic Acid, Synthetic Manufacture, 681
Acetylene Welding. See Welding
Acid, Acetic, Synthetic Manufacture, 681
Ceratherm Pump for, 852*
Effect on Brittleness of Steel, 226 '
Electric Resistance Heaters for, 852*
Fatty, Effect on Lubricating Oils, 10
Mine Liquors, Air Lift Pump for, 460*. See 430, 693
Nitric, Production by Gaseous Explosions, 230
Resisting Iron, Thermisilid, 478
Sulphuric, Manufacture, Report on, 190
Tartaric, Optical Rotatory Properties, 33
Ackermann Gauge, Penetration of Piles, 686.
See LETTERS, 756, 851. See also 123, 131*
Activated Sludge Process, Sewage Purification, 86, 115
Adamson, D., on Foundry Costs, 894*
Adcock, F., on Electrolytic Etching of Metals, 484
Address, Presidential. See Presidential Address
Admiralty Gun-Metal, Effect of Lead, 580*. See 448
See also Warships
Adsorption of Gases by Charcoal, andc., 469
Advisory Committee for Aeronautics, U.S., Report, 162
Aerial Navigation. See Aeronautics
Propellers. See Propellers under Aeronautics
Ropeway. See Wire Ropew:ty
Transport. See Aeronautics
See also Telegraphy, Wireless
Aerodynamics. See Aeronautics
Aeronautical Society, Royal, G. Brewer on Trials of Langley's Aeroplane, 609, 828

Aeronautics :

Aerodynamic Experimental Station, G6t-tingen, 218*
Aerodynamics, Pressure on Airship Con-trol Surfaces, 651
Work of N. P. L., 98*
Aeroplane Construction, Scottish Timber for, 405
Design, Features of Paris Aeronautical Exhibition, 795, 862
Dopes, N. P. L. Investigations, 192
Langley's, Hammondsport Trials of, 609, 828
Mechanical Principles of (Review), 228
Model Experiments, N. P. L., 98 at Paris Exhibition, 795, 862
Performance Calculations (Review), 609
Petrol Tanks for, Air Ministry Competition, 323, 769
Aeroplane Photographs, Mapping from, 557*
Stability, Model Experiments at N.P.L., 98
Study of Steady Motion, 152
Wings, Internal Bracing, 301*
See also Seaplane (below)
Aircraft Manufacture, Aluminium Alloys for, Report, 594, 613, 624, 644
Materials, Report on (Review), 485
in Naval Warfare, 318
Airship It 38 (Z.R. 2), Loss of, 320, 545.
See 347, 651*
Commercial Prospects, 58
Control Surfaces, Pressures on, 651*
Experiments, N.P.L., 98
Fabrics, Permeability of, 57*, 192
Government, Scheme for Utilisation,152
Services, Proposed Imperial, 320 Balance, Overhead, Wind Tunnel at N.P.L., 98*
Balloons, Pilot, Behaviour at Great Heights, 693
Civil Aviation. See also Airships (above Engine, Petrol, Aeroplane, 1,000 h.p., Dr. Rumpler's, 252
Aeroplane, Altitude Compensation, 72. See Erratum, 109
Aeroplane, Aluminium Alloy Pis-tons, 613. See 595, 625
Aeroplane, Balancing, Exponential Analysis, 778*
Aeroplane, Bristol Jupiter, Trials, 691. See 862
Aeroplane, Bristol Starter, 800
Aeroplane, Materials for Construc-tion (Review), 485
Aeroplane, at Paris Aero Exhibition, 796. See 862
Navigation, Aerial. See also Telegraphy, Wireless
Paris Aeronautical Exhibition, 795, 862 Petrol Tanks, Air Ministry Competition, 323, 769
Propellers, Aeroplane, Work of N.P.L., 98
Rudders, Airship, Pressures on, 651* Seaplanes, Data of Hulls, 407
Design of, 406
Pressures on Hulls, 99
United States Advisory Committee for
Aeronautics, Report, 152
Wind Tunnel Balance, Overhead, at
N.P.L., 98*
Duplex, at N.P.L. 98*
Gottingen Aerodynamic Experimental Station, 218*
Wings, Aeroplane, Internal Bracing, 301* Wireless Apparatus for Aircraft. See Telegraphy, Wireless
See also PARAGRAPH INDEX.
Aeroplane. See Aeronautics
Aersedcon System, Sewage Purification, 186 Agents, Foreign, British Engineering Firms, 317
Agreements, Labour. See Labour

Agricultural Exhibition, Smithfield Show, 795

Hall. See Exhibition
Motors. See Engines ; Motors ' Tractors
Society, Royal, Derby Show, 7*, 36*
Tractors. See Tractors
Agriculture, Simar Cultivating Machine, 36
See also Irrigation and PARAGRAPH INDEX Air Bubbles Velocity in Water, 459*. See 693
Compressed. See Compressed Air, Pneu-matic
Compressors, Air Filters for, 535*
Belliss and Morcom, New Modder-fontein Mine, 535*. See LETTERS, 661
Diesel Engine, Bursting of Cooler Coils, 59, 253
and 011 Engine, Parsons Motor Co., Ltd., 374*
Rotary, Reavell's Turbo Blower, 435*
Tests, Nozzle for Measuring Delivery, 536*. See LETTERS, 661. See also 461*
Three-Stage, for Diesel Engine, 722* — — Three-Stage Vertical, Reavell's, 435* — — Two-Stage, Double Acting, for Kiruna-vaara Mines, 675*
Two-Stage Horizontal, Reavell's, 435*
Unloading Device for, 675*
Conditioning Plant, London Sessions House, 518*
Currents, Heat Emission from Thin Plates in, 10
Ejector, Jet, Condensing Plant, Turbo-Generator, 876*
Exhausters, Turbine and Reciprocating, Grain Elevators, 859*, 865
Filters, Air Compressor Plant, 5359'
Air Flow through Nozzles, 750
Heaters for Boiler Furnaces, 57*, 92. See 65
Humidification, Textile Factories, 202*
Lift Pump, Acid Mine Liquors, 460*. See 430, 693
Pumps, Experiments on, 430, 458*. See LETTER, 693
Liquid, Mine Rescue Apparatus, 508*. See 431
Ministry Competition, Petrol Tanks for Aircraft, 323, 769
Moisture in, Measurement, 890
Pump. See Pump
Supply, Boiler Rooms, Warships (Review), 10 1
Suspended Impurities in, 554*, 555*. See 12, 531, 737 See also Atmosphere
Aircraft. See Aeronautics
Airserews. See Propellers under Aeronautics
Airships. See Aeronautics
Aitchison, Dr. L., on Chromium Steels and Iron, 771*,805*
Albert Dock, ondon, Extension of, 2*, 109 Alcohol, Sources of, 27
Algeria, Mineral Resources, 823
Alignment Chart, Gases, Intermil-Combustion Engines, 302*
Alkali Works in 1920, Report, 190
Alkins, W. E., on Cold-Drawing Bronze, 449 Allen, E. and Co., Ltd., Works and Products, 272*, 304*, 335*
Allgemeine Electricitiits Gesellschaft, F. Deutsch on Capital and Labour, 676
Alliance Machine Co., Manipulators for Forg lugs, 151*
Allis Chalmers Manufacturing Co., Centrifugal Drainage Pumps, 643*
Alloys. See Metallurgy, Microphotographs and PARAGRAPH INDEX
Alsop Process, Bleaching Flour, 36
Alternating Current. See Electric Stress. See Tests (Materials)
Alternators. See Generators, Electric
Altitude Compensation, Internal-Combustion Engines, 72. See Erratum, 109
Alumina, Refractory Properties, 537
Aluminium Alloys. See Alloys under Metallurgy
Vessels for Breweries, 638
See also Metallurgy ; Metal-Price Diagrams Alwen Dam and Reservoir, Birkenhead Water Supply, 286*
American Bureau of Shipping. See United States Chemical Society. See Chemical Engineering Societies, Federation of, 63 Engineers' Message to British Engineers, 19
Institute of Electrical Engineers. See Electrical Engineers
Locomotive Co., Recent Designs, 743
Motor Cars, Prices, 225. See LETTER, 450
Navy. See United States under Warships
Passenger Steamers, Design and Construction, 836, 847
Society of Civil Engineers. See Civil Engineers of Mechanical Engineers. See Mechanical Engineers of Naval Architects and Marine Engineers. See Naval Architects. See also United States
Ammonia Compressor, West's High-Speed, 607
Production from Coal and Coke, 562 — Manufacture, Report on, 191
Recovery Plant, Leamington Gas Works, 135*
and Season Cracking of Brass, 298*, 327*
Synthetic Manufacture, Claude Process, 732
Production, Statistics, 346
Ammonium Sulphate, Plant for Manufacture, 562 Production, Statistics, 345
Analysis, Chemical, Technical Methods (Re view), 322
— by Volatilisation in Electric Arc, 226*p * — and Positive Rays (Review), 846*p * Harmonic, and Periodicity Measurements, Vibrations, 469*
Anderson, J., on Tonnage • Measurements, 704
Anderson, J. H., on British and American Mining Methods, 608
Anemometer, Hot-Wire Type, 192
Angram Reservoir, Hydro-Electric Power Plant, 817*
Annealing of Glassware, Twyman Method, 854
See also Heat Treatment under Metallurgy
Annual, Brassey's Naval and Shipping (Review), 798
Publications. See also LITERATURE INDEX
Ansaldo-San Giorgio, Diesel Engine, 721
Anthony Boiler Feed Pump, 658*
Anti-Friction Metals. See Alloys under Metallurgy
Antimony Prices. See Metal-Price Diagrams Apollo Turret Lathe, 758*
Applied Chemistry, Reports on Progress (Re-view), 227
Appointments. See PARAGRAPH INDEX Apprentices and Premium Pupils in Engineering Works, 667
Training at Horwich Works, 836 Apprenticeship. See also Education
Aquadag, Sight-Feed Lubricator for, 57* Aquatole Water Lifter, 37, 417
Aqueduct, Winnipeg Water Supply, Construction, 589*, 621*
Arbitration in Labour Disputes. See Labour ; Industrial Notes and PARAGRAPH INDEX Arbitrators' Duties, Commercial Disputes, 352
Arc. See Electric; Furnace; and Welding Arch Bridges, Timber, Durability, 635, 646
Concrete, for Aqueduct Design, 621.* See 589*
See also Bridge
Archbutt, S. L., Report on Aluminium Alloys,
594, 613, 624, 644
Architects, Naval. See Naval Architects
Arithmetical Calculations, Napier's Bones, 601. See LETTER, 661
Armament. See Guns; Warships
Armour Plate Cutting, Oxy-Acetylene Blow pipe, 274*
German, British Trials, 419, 610*. See Erratum, 633
See also Warships and Naval in PARAGRAPH INDEX
Armstrong, Prof. F. E., the Late, 641
Armstrong, Whitworth and Co., Ltd., Tank Steamer, "San Felix," 441* ; Crankshaft for Doxford Marine Oil Engine, 723*
Arrol, Sir W., and Co., Ltd., Steelwork, Royal Albert Dock Extension, 6*
Arrowsmith, G., on Critical Speed Calculations, 717*
Arsenic Works, Treatment of Dust and Fumes, 190
Artillery. See Guns and PARAGRAPH INDEX Arts, Royal Society of, Sir K. Goodby on Industrial Diseases, 159 ; A. A. Campbell
Swinton on Wireless Telegraphy, 636 Asbestos Building Materials, 711
Ash-Handling Plant, Holton Heath Cordite Factory, 706*
— — Plant, Wet Conveyor, Poplar Power Station, 231*
Pits, Locomotive, New Jersey Central Railroad, 125*
Ashes, Boiler Furnace, Recovery of Unburnt Fuel, 797
Association, British. See British Association — British Engineers', Conference, 576
Engineering. See also Institutions Astronomical Watch, S. Smith and Son, Ltd., 785 Astronomy, Microchronograph, Edinburgh Observatory, 500*
Radial Velocities of Stars, 501
72-in. Reflecting Telescope, Canadian
Government, 207*, 240*, 209*. See LETTER, 249. See also 501
Star Streaming, Dynamical Theory, 501
for Travellers (Review), 815
Atkinson Cycle, Internal-Combustion Engines, 69*
Atlantic Liners. See Steamers
Atlas Diesel Ci.. Ltd., Air Compressor, 675*
Atmosphere, Ionized, Behaviour of Pith Balls in, 434
Pollution by Chemical Works, 190
Suspended Impurities in, 554*, 555*. See 12, 531, 737
Upper, Discontinuity of Temperature. 500 — — Pilot Balloons at Great Heights, 693 Atmospheric Moisture, Measurement, 890
Nitrogen, Fixation, Musser Process, 230 — — Fixation, Statistics, 345
Pressure, Diurnal Variations, 442 Atomic Weights and Isotopes, 382 Atoms, Radiation and Absorption by, 468
Structure of, B.A. Discussion, 529
Austin, Dr. P. C., on Optical Rotatory Dispersion, 33
Australia, Sydney Harbour Bridge, 880* Austria, Commercial Situation in, 256 Autogenous Welding. See Welds and Welding Automatic Machine Tools. See Machine Tools
Stokers. See Stokers
Telephone Systems (Review), 879
Automobile Engineers, Institution of Presidential Address, by G. W. Watson, on Standardisation, 573 ; T. Clarkson, on Coke Fuel for Motor Vehicles, 579 ; Annual Dinner, 608 ; Dr. L. Aitchison, on Chromium Steels and Iron, 771*, 805* ; H. F. L. Orcutt, on Motor Car Gear-Boxes, 830*, 870* 897*
See dotor Cars
Auxiliary Machinery, Marine. See Marine Avery, W. and T., Ltd., Exhibit at Olympia, 438*
Aviation. See Aeronautics
Axles, Motor Car. See Motor-Car Details — Tramway, Standard Specification, 475

B.

BACTERIA, Iron, and Pipe Incrustation, 457*. See 430
" Baden," Ex-German Battleship, Armour
Plate Trials, 419, 610*. See Erratum, 633 Badische Anilin and Soda Fabrik, Destruction of Oppau Works, 443
Baily, Prof. F. G., on Small Water Powers, 410. See 406
Bainbridge, F., on Blast Furnace Gases, 66 Bakerian Lecture on Optical Rotatory Dis-persion, 33
Balance, Wind Tunnel. See Aeronautics Balancing Machine for Connecting Rods, 439* — Reciprocating Masses, Exponential Analysis, 778*
Turbine Reduction Gears, 372
Baling Press, Hay or Straw, Ruston and
Hornsby, Ltd., 38*
Ball, H. S., on the Francois Cementation
Process, 24, 45, 77
Ball Bearings. See Bearings
Hardness Tests. See Hardness under Tests (Materials)
Pith, Behaviour in Ionized Atmosphere, 434
Steel, Grading Machine for, 60*
Tube Mill, E. Allen and Co., 337*
Balloons. See Aeronautics
Ballots, Trade Union, Legality of, 826
Baltic Sea, Investigations of Currents and
Salinity, 499
Bamford, T. G., on Copper-Zinc Alloys, 585*.
See 449
Band Conveyors. See Conveyors
Bankruptcy, National, Meaning of, 107
Statistics, Engineering Trade, 797
Bar-Heating Furnace, Colloidal Fuel Tests, 124* Barclay, Dr. F. S., on Centrifugal Pumps, 642*. See 430
Barford and Perkins, Ltd., Motor Road Roller, 884*
Barometric Pressure, Diurnal Variations, 442 Barr, Dr., on the Work of Rankine, 861 Barrages, Effect. on Discharge of Tidal Rivers, 121, 130
Vaal River, Rand Water Supply, 325*
Thames, Suggested, 22, 31, 39
Barrels, Steel, Collapsible, with " Victaulic "
Joint, 375*
Barugh Works, Coalite Manufacture, 596*.
See 68, 110
Bascule Bridges. See Bridges
Batteries. See Electric
Battery Vehicles. See Motor Wagons
Battleships. See Warships
Beams, Irregularly Loaded, Harmonic Analy sis, 656*, 686*
Standard, Properties of, 712
Beardmore Measuring Pumps for Paint and
Oil, 632*
Quick-Acting Valve, 759*
Beare, Prof. T. H. on Width of Test Pieces,
389*, 406 ; on Uses for Scottish Timbers,
405
Bearing Metals. See Alloys under Metallurgy
Power of Soils, 123, 132
Bearings, Ball, Chromium Steel for Races, 806
Grading Machine for Balls, 60*
and Roller, Friction Tests of, 11
and Roller, Standardisation, 187
and Roller, Vertical Shafts for Centrifugal Pumps, 742*
for Telescope Mounting, 208*. See
LETTER 249
Nordberg Winding Engine, 566*
Thrust, Michell, Turbo-Generator, 874* Beckinsale, S., on Season Cracking of Brass,
262*, 297*, 327* ; on Magnesium Alloy
Electron, 641
Beet Sugar Factory, Kelham, Opening, 639 Beilby, Sir G. T., on Fuel Problems, 26 ; Work
on Aggregation and Flow of Solids
(Review), 878
Belaiew, Col. N. T., on Damascene Steel, 395* Bell, A. L., on the Bearing Power of Soils, 123, 132
Bell Clappers, Bronze and Iron, Fractures, 149
Belliss and Morcom, Ltd., Pneumatic Hose Coupling, 215* ; Air Compressor, New Modderfontein Mine, 535*. See LErrERs, 661
Belluzzo Turbine Locomotive, 728*. See 477 Belt Conveyors. See Conveyors*p * Superposed, Power Transmission by, 262 Bench Vice. See Vice under Machine Tools Bending Tests. See Tests (Materials) Bennett, J. J., on Wireless Direction Finding,
333*
Bennis, A. W., on Automatic Stokers, 91 Benzole Fuel for Motor Vehicles, 737
Berry, F., and Sons, Ltd., Motor-Driven Lathe, 364*
Berthing Gear, Ship, for Floating Docks, 775*. See 720
Bessemer Medal, Presentation to Mr. C. Fremont, 383
Bevel Gears. See Gears
Bicycles, Motor. See Motor Cycles Billet-Piercing Machine, Rotary, Tube Manufacture, 397*, 429*, 495*, 527*. See
LETTERS, 612, 660
Bills of Lading, Hague Rules, 413
Binary Alloys. See Alloys under Metallurgy -- Vapour Power Plant, Steam-Mercury, 04*
Biochemistry, Problems of, 629
Biotron Negative Resistance Device, Wireless
Telegraphy, 685*. See 409
Biplanes. See Aeronautics
Birkenhead, New War Supply, 286*
Birmingham District, Electric Power Supply,
191, 226
Meeting, Institute of Metals. See Aletals, Institute of
Sewage, Power Gas from Sludge, 456*. See 431
Bituminous Materials, Road Construction. See Roads
Blackburn Power Station, Opening, 608 Blacksmiths' Work, Modern Requirements, 766 Blades, Turbine, Failures in U.S. Destroyers,
615*, 647*. See 636
Hyde \Voiding Process, 339*

Materials for, 636. Sde 592*

of Stainless Steel, 592*
Binding, 12,500 kw. Turbo-Generator, 874* Blast Furnaces. See Furnaces
Blasting Subaqueous Rock, Pier Foundations, Harriman Bridge, 264*
Bleaching Flour, Alsop Electrical Process, 36 Blind Persons, Employment in Workshops, 715*
Blocks, Concrete, for Building Construction. See Concrete
Blower, Turbo, Reavell's, Scavenging Two-Cycle Engines, 435*
Blowpipe, Oxy-acetylene. soe Welding ; Cutting
Board of Trade Report, Bank r i)tey Statistics, 797
Report, Boiler Explosions, 148, 324, 775, 883
Report, British Water Power Resources, 828
Report, Explosion of Brewing Copper, 343
Report, Explosion of Fertiliser Filter, 742 — Report, Explosion of Laundry Calender, 583
Report, Explosion of Steam Chest on Trawler, 711
Report, Explosion of Stop Valve, 537. See Erratum, 570
Report, Explosion of Vulcanising Pan, 236
Report, Explosion of Yarn Drying Cylinder, 217
Report, Steam Pipe Explosions, 102, 839
Trade Rules, Oil Fuel on Ships, 372 Boat, Flying. See Seaplane under Aeronautics
Submarine. See Warships
Boby, R., Ltd., Grain-Handling Plant, Bor
deaux, 312*, 370*
Bogies, Travelling Towers, Grain-Handling'
Plant, 370*
Boiler, Coke-Fired, Clarkson Lorry, 277*
Explosion, Locomotive at Buxton. 759. See LETTER, 786
London Hospital, Report, 148
Low Pressure Heating, 775
Steam Crane : No Safety Valve, 883
Thompson Water Tube, 324
Feed Pump. See Pump
Water Regulator, Automatic, 785* Firing, with Coke Breeze and Bituminous Coal, 186
Furnaces. See Furnace and Stoker
House Accessories, Exhibition, 56*
and Control System, Portobello Power Station, 422*
Holton Heath Cordite Factory, Coal Handling Plant, 706*
Locomotive, Copper Tube Plates, Repairing Cracks, 251*
Design for Fuel Economy, 743
See also Locomotives
Making, Oxy-Acetylene Cutting Machine for, 356*
Marine, Cylindrical, SS. " P.L.M. 20," 340* Cylindrical, SS. " Paris," 246*
Oil Firing, Report on, 321

at Olympia Exhibition, 436*p * Plants, Advantages of Automatic Stokers, 91

- - Feed Heating and Economisers in, 94
Possible Coal Economies, 29
Recovery of Unburnt Fuel, 797 - - Steam Consumption of Steam Jets, 92
Rooms, SS. " Giulio Cesare," 664*
- Warships, Air Supply (Review), 110
Waste Heat, in Gasworks, 24, 45, 77
Water Density in, Indicator for, 57
See also Engines and Boilers in PARAGRAPH INDEX
Bolts, Relief, Electrical Mining Apparatus, 376 Bone, Dr. W. A., on Low-Temperature Carbonisation, 68. See Erratum, 110

Books, New, Notes on, 164, 183, 216, 250, 307, 367, 474, 501, 550, 612, 725, 751, 783. See LITERATURE INDEX - Received, 110, 162, 194, 229, 261, 322, 354, 386, 460, 485, 515, 846, 879 548, 610, 768, 799, 816, Bordeaux-BaEsens, Grain-Handling Plant, 312*, 370*

Boring Machine. See Machine Tools
Bottle Washing and Filling Machines, Brewers'
Exhibition, 638
Bracing, Internal, Aeroplane Wings, 301*
Brackenbury, H. I., on Waste, 514
Bradford Water Supply, Hydro-Electric Power
Plant, 817*
Brain, Sir F. W. T., the late, 386
Brake Gear, Nordberg Winding Engine, 628*
Railway, Damage to Tyres and Rails, 54, 82*
Brashear Co., J. A., Optical Work, Canadian Government Telescope, 207*, 240*, 269*. See LETTER, 249. See also 601
Brass, Compressibility at High Temperatures, 770*
Corrosion of. Sec Corrosion
Extrusion of, 609. See 483, 487*
Foundry, See Foundry
Brass Industry, British, Modern Developments, 609*p* Ingots, Casting of, 452*. See 449 Rods, Extrusion Defect in, 487*. See 483*p* Season Cracking of, 262*, 297*, 327*
Brassoy's Naval and Shipping Annual (Review), 798
Bray, Markham and Reiss, Ltd., Motor Starters, 99*
Brayshaw, S. N., on Hardening Tool Steel, 517. See LETTER, 567
Brazil, Paulista Railway, Electric Locomotives for, 854*
Breakwaters, Construction of, Ferro-Concrete Caissons, 23, 40, 73. See Erratum, 152
Ferro-Concrete, Deterioration and Protection, 23, 40, 73
Breathing Apparatus, Industrial Respirators, 072
Oxygen and 'Liquid Air, Mine Rescue
Work, 568*. see 431
Brewer, (4., on Trials of Langley's Aeroplane,
609, 828
Brewers' Exhibition, Agricultural Hall, 638
Brewing Copper Explosion, Report, 343
Brick Buildings, Moving and Raising, 842*
Fire. See Firebricts and Refractory

Materials

Bridge Builders, Shipbuilding by, 84, 112
Cantilever, Forth and Quebec, Comparisons, 531
Proposed, Sydney Harbour, 880*
Construction, Cost in U.S., 202, 235, 267, 268
Schemes in Parliament, 767
Design, Loading and Stress Allowances,
880*
Modern Methods in, 349
Ferro-Concrete, on Railways, 49, 79
Indian Railway, Reports, 349
Plate Girder, Ebury Street, London, Recon
struction, 163*
Railway, Maintenance of, 835, 646. See 88
— Impact Tests and Allowances, 50, 80, 118,
189, 350, 881
Repairs to Floor System, 88
Swing and Bascule, Royal Albert Dock, 6* Timber Arch, Durability, 635, 646
Vertical Lift, Rostoff, Russia, 268*
Lift, in United States, 199*, 234*, 264*
Vibrations, Investigations, 431
Yellow River, Tenders for, 517, 540, 567
See also PARAGRAPH INDEX
Briey Iron Mines, War Damage and Recon
struction, 383
Briggs, Prof. H., on Mine Rescue Apparatus,
568*. See 431
Brinell Tests. See Hardness under Tests
(Materials)
Briquetthig Lignite in Canada, 615
Press, Duplex, for Coal, 689*
Bristol Aero Engine Starter, 800
" Jupiter " Aero Engine, Trials, 691. See 862
University, Appeal for Funds, 226
British Association (Edinburgh Meeting) :
Preliminary Announcement and Programme, 288. See 253
Opening Remarks, 381
Presidential Address, by Sir E. Thorpe,
on Problems of Post-War Science, 381 Section Reports, 405, 430, 467, 498, 528 Evening Discourses, 531
Concluding Remarks, 531
Section G.—Engineering—
Programme, 253
Presidential Address, by Prof. A. H.
Gibson, on Water Power, 420. See 406
Scottish-Grown Timbers for Aeroplanes and Pit Props, by Prof. T. Hudson Beare, 405
Experiments on the Mechanical Properties of Scots Pine, by Prof. A. R. Home, 387*, 405
Stresses in Ship's Plating due to Fluid Pressure, by Dr.B. C. Laws, 368*, 405. See LETTERS, 410*, 486, 540*, 567, 612, 640, 693
Fracture of Wires in Steel Ropes, by Dr. E. M. Horsburgh, 406, 707*
Influence of the Width of the Specimen upon the Results of Tensile Tests of Mild Steel and Rolled Copper, by Prof. T. Hudson Beare and W. Gordon, 389*,406
Linking up of te Small Water Powers in Scotland, by Prof. F. G. Baily, 410. See 406
Utilisation of Tidal Power, with Special Reference to the Severn Estuary, by Prof. F. C. Lea, 424*. See 406, 422. See LETTER, 540
Seaplanes, by Squadron Leader A. J. Riley, 406
Mid-Scotland Canal, Joint Discussion with Section C, 407, 462
New Electricity Supply Station of the Edinburgh Corporation, by S. B. Donkin, 422*
Report of Cothmittee on Complex Stress Distribution, 408
Two Dimensional Stresses in Rectangular Plates, by Prof. C. E. Inglis, 523*
Large Electric Units, by Dr. S. P. Smith, 399*. See Erratum, 538. See LET-TERS, 486, 540
The Negatron : A New Negative Resistance for Use in Wireless Telegraphy, by J. Scott-Taggart, 584*. Sec 409
New Device having Negative-Resistance Characteristics, by J. Scott-Taggart, 585*. See 409
Long-Distance Transmission of Electrical Energy, by Dr. T. F. Wall, 587*. See 409
Centrifugal Pumps, by Dr. S. F. Barclay, 642*. See 430
Experiments on Air Lift Pumping, by Dr. .T. S. Owens, 458*. Sec 430. SIP Limn, 693
British Association—continued.
Iron Bacteria in Relation to the In-crustation of Pipes, by Dr. D. Ellis, 457*. See 430
Stresses in Rails and Vibrations of
Bridges, by Prof. Timoshenko, 431 Power Gas from Sewage, by J. D. Watson,
456*. See 431
New Mine Rescue Apparatus, by Prof. H. Briggs, 568*, See 431
Section A.—Mathematical and Physical Science—
Presidential Address, by Prof. 0. W. Richardson, on Problems of Physics, 431
Eistein's Theory of Relativity, by Prof. A. S. Eddington, 4:33
Relativity Contraction in a Rotating Shaft Moving with Uniform Speed along its Axis, by Dr. F. E. Hackett, 433
Time Interval between the Absorption and Emission of Light in Fluorescence, by Prof. R. W. Wood, 433*
Hydrogen Spectra in Long Vacuum Tubes, by Prof. R. W. Wood, 434
Reception of Wireless Waves on a Shielded Frame, by A. A. Campbell Swinton, 434
Behaviour of an Electrified Pith Ball in an Ionised Atmosphere, by Dr. D. Turner and D. M. R. Crombie, 434
Discussion on the Quantum Theory, 434, 467
Radiation and Absorption by Atoms, by Prof. J. C. McLennan, 468*
Energy of X-Radiation, by Prof. C. G. ]3arkla, 469
Harmonic Analysis and Periodicity Measurements, by Dr. W. L. Balls, 469*
Recording Ultra-Micrometer, by J. J. Dowling, 395*. See 469
Prehensility : A Factor of Gaseous
Adsorption, by Prof. H. Briggs, 469 Magnetic Anomaly in the District of
Kursk, by Prof. A. Kriloff, 469
Age of the Earth, Joint Discussions with Sections C, D, and K, 498
Report of Committee on Seismological Investigations, 499
Report of Committee on Tides, 499
Internal Movements in the Sea, by Dr. H. Pettersson, 499
Cause of Cyclones, by Dr. H. Jeffreys, 500 Theory of Cyclones and Anti-Cyclones, by Prof. V. Bjerknes, 500
Discontinuity of Temperature at the Top of the Troposphere, by W. H. Dines, 500
Dry Period of 1921 in England and Wales, by M. de Carle Salter, 500
Geophysical Observatory in the Shetlands, by Dr. C. Mitchell, 500 Magnetic Storms of the Present Solar Cycle, by the Rev. A. L. Cortie, 500 Microchronograph at the Royal Observatory, Edinburgh, by Prof. IL A. Sampson, 500*
Theory of the Structure and Motion of the Stellar System, by Prof. J. C. Kapteyn, 501
72-in. Telescope of the Dominion of Canada, by Sir Frank Dyson, 501. See 207*, 240*, 249, 269*
Radial Velocities of Stars, by Prof. G. Forbes, 501
Four-Dimensional Physics, by Prof. E. T. Whittaker, 501
Structure of Molecules, Joint Discussion with Section B, 529
Section B.—Chemistry—
Presidential Address, by Dr. M. 0. Forster, on the Laboratory of the Living Organism, 529
Biochemistry, Papers on, 529
Synthesis of Formaldehyde and Carbo-hydrates from Carbon Dioxide and Water, by Prof. E. C. C. Baly and Drs. M. Heilbronn and W. F. Barker, 529
Structure of Molecules, Joint Discussion with Section A, 529
Surface Tension Measurements at Extreme Temperatures, by Prof. F. M. Jaeger, 530
Surface Tension in the Solidification of
Metals, by Prof. C. H. Desch, 530 Surface of Liquid Steel, by C. Johns, 619.
See 530
Modern Dyestuff Industry, by Prof. E. H. Fierz, 530
Report of Committee on Fuel Economy,531 Pollution of the Air of Manchester and
Salford, by W. Thomson, 554*.
See 531
Suspended Impurity in City Air, by Dr. J. S. Owens, 555*. See 531, 737
Section C.—Geology—
Mid-Scotland Canal, Joint Discussion with Section G., 407, 462
Age of the Earth, Joint Discussion with Sections A, D and K, 498
Section D.—Zoology—
Age of the Earth, Joint Discussion with
Sections A, C and K, 498
Section F.—Economic Science and Statistics-Presidential Address, by W. L. lichens,
on Wages Determination, 445.
Section K.—Botany—
Age of the Earth, Joint Discussion with
Sections A, C and D, 498
British Empire Exhibition, Proposed, 381
Engineering Firms, Representation Abroad, 317
Standards Association. See Engineering
Engineers, American Engineers' Message
to, I9
Association, conference, 576
British Industry, Trade Exhibition Ship, 446. See 377, 723, 819
Malaya, Engineering Works in, 823
Navy. See H.M. under Warships
Petroleum Co., Ltd., Cleary Oil Burner, 672
Railways. See Railways
Shipbuilding. See Shipbuilding
Shipping. See Shipping
Trade. See Trade
Brittleness, Steel, Produced by Pickling, 226
Bronze, Effect of Cold-Drawing, 449
Bell Clappers, Fractures, 149
Brook, Hirst and Co., Ltd., Drum Type Starting Panel, 726*
Brooks, It., Chart for Designing Helical Springs, 173*
Brown Coal, Production and Use, 15, 26 Brush-LjungstrOm Turbo-Generator, 399* Bubbles, Air, Velocity in Water, 459*. See 693
Buck and Hickman, Ltd., " Samson " Temperature Regulator, 307*
Bucket Conveyor. See Conveyor
Buckling Press, Spring, Hydraulic, Hele-Shaw System, 502*
Buffalo Forge Co., Ltd., Air Conditioning Plant, 518*
Buildings, Brick and Steel Framed, Moving and Raising, 842*
Construction, Concrete Blocks and Machines for. See Concrete
—. See also Ferro-Concrete and PARA-GRAPH INDEX
Materials, Asbestos, 711
Bulge Protection, Merchant Shipping, Torpedo Attack, 787*
Bulkheads. See Water-Tight Subdivision Bullets, Photographing in Flight, 12
Bunkers, Ships', Spontaneous Combustion of Coal, 892
Bureau of Mines. See United States
Shipping. See United States
Standards. See United States
Burmeister and Wain, Ltd., M.S. " Malaya," 195
Burners, Oil Fuel. See Oil Fuel
Burt-McCollmu Air Cooled Oil Engine, 538*. See 37
Business, Human Factor in (Review), 610

C.
CABLE Ploughing, Oil Tractor for, 36*
Reel, for Portable Electric Tools, 550*
See also Wire Ropes and Electric
Cableway. See Wire Ropeway
Cadman, Sir J., on the Mining Industry, 418
Cadmium, Properties of, 766
Caisson, Dry Dock, Royal Albeft Dock
Extension, 5*
Ferro-Concrete, Construction of Wharves
and Breakwaters, 23, 40, 73. See
Erratum, 152
Timber, Pier Foundations, Harriman Bridge, 264*
Calcium Carbide, Acetic Acid Manufacture from, 681
Calculating Slips, Napier's Bones, 601. See LETTER, 661
Calcutta, Dredger " Gunga " for, 151 Calender, Laundry, Explosion of, 583 Calibration of Level Tubes, 159*
California, Water Shortage in, 288
Calorific Standard, Sale of Gas, 29, 546 Calorimeters, Gas, Recording, Report, 546. See 571
Cammellaird-Fullagar Engines, M.S. " Malia," 503
Campbell and Isherwood, Ltd., Ship Lighting Sets, 416*
Cams, Cutting by Oxy-Acetylene Blowpipe, 310*
Canada, British Trade with, 672'
Coal and Water Power in, 890. See 226
Lignite Briquetting in, 615
Toronto Tramways, Automatic Sub-Station, 747*
Water Power Resources of, 226. See 890
Winnipeg Water Supply, New Aqueduct,
589*, 621* .
Canadian Government. Reflecting Telescope and Observatory, 207*, 240*, 269*. See LETTER, 249. See also 501
Meade-Morrison Co., Ltd., Floating Crane, 784*
Canals, British, Proposed Reorganisation, 156. See LETTER, 220
— and Railway Competition, 156. See LETTER, 220
Ship, Forth and Clyde, 407, 462
Suez, Traffic, 314, 404
See also PARAGRAPH INDEX
" Canossin " Steam Trawler, Explosion on, 711
Cantilever Bridge. See Bridge
Construction, Cargo Steamer, " P.L.M. 20,"
339*
Capacity. See Electric
Capital and Labour. See Labour and Industrial
Notes
Capstan, Electric, for Floating Dock, 775*.
See 720
Carbide of Calcium, Acetic Acid Manufacture
from, 681
Carbocoal Smokeless Fuel, Manufacture of,
175*. See 68
Carbohydrates, Synthesis of, 529
Carbon, Chemistry of Combustion, 65
Fusion of, 352
Monoxide Gas, Poisoning by, 259. See 319
— in Town Gas, 318. See 259
Rate of Diffusion into Iron, 279
Carbonisation, Coal, Smith Continuous Process, 175*. See 68
Low Temperature, of Coal, 29, 68, 175*, 596*. See Erratum, 110
in Horizontal Retorts, Gas Manufacture, 561
Peat, in Vertical Retorts, 545
Carburisation. See Heat Treatment under Metallurgy
" Cargo Shipper," Motor Ship, Converted
Sailing Vessel, 221
Cargo Steamers. See Steamers
Winches, Electric, Olympia Exhibition,435* Carriages, Dining, Midland Railway, 105 ; Great Northern Railway, 570
Pullman, London, Brighton and South Coast Railway, 217
Carriers Act and the Railway Companies, 545 Cars, Motor. See Motor Cars
Cartault, M., on Railway Track Repairing Plant, 281
Cartridge Cases, Season Cracking, 263* Cartwright, W., on Cold-Drawing Bronze, 449 Case Hardening. See Heat Treatment under
Metallurgy
Cask-Making Plant, Brewers' Exhibition, 638 Cassel, Prof. G. E., Bench Vice, 567
Cast Iron Filter Cover, Explosion of, 742
Steam Pipe, Explosion by Water Ham
mer, 102. See 839
— — Water Pipes, Corrosion of, 145, 168
Casting Aluminium Alloys, 613. See 624
— of Brass Ingots, 452*. See 449
Foundry Costs and Establishment Charges, 894*
Grey Iron, Problem of, 892
Iron and Steel, Production at Horwich Works, 832*
Machine, Liability for Breakage, 259
Steel, Manufacture at E. Allen and Co.'s Works, 306*, 335*
Catalogues, 32, 134, 170, 204, 236, 268, 331,
360, 556, 588, 619, 647, 681, 712, 745, 776,
807, 901. See PARAGRAPH INDEX Catalysis in Chemical Reactions, 512. See 411 Catchment Areas, Yield of, 513
Caterpillar Tractor. See Tractor
Cavitation Phenomena, Marine Propellers, 85*, 114
Cells. See Electric
Celluloid Models, Stress Determination by. See Optical
Cement, Effect of Sulphur in Tropics, 711
Grouting, Francois Process, 24, 45, 77'
Gun for Tunnel Repairs, 21, 30, 49
Kilns, Heat Losses from, 193
Making Plant, Manufacture, E. Allen and Co.'s Works, 338*
Slag, Manufacture in Electric Furnace, 103
See also Concrete and PARAGRAPH INDEX Cementation. See heat Treatment under Metallurgy
Central Railroad, New Jersey, Locomotive Ash-Pits, 125*
Station. See Power Station
Centrifugal Drying Machine, Sulphate of
Ammonia, 136*
Pdmps. See Pumps, Centrifugal Ceramic Society : Autumn Meeting, Refractory
Materials Section, 536, 576* ; Programme, 443 ; H. Dewey, on the Refractory Materials of the London Basin, 536 ; J. H. Marlow, on the Marlow Gas-Fired Tunnel Oven, 536 ; P. J. Woolf, on the Combustion of Oil Fuel, 536 ; Dr. A. Granger, on Alumina and Corundum as Refractories, 537 ; H. S. Houldsworth and Prof. J. W. Cobb, on the Reversible Thermal Expansion of Silicia, 576*
Ceratherm Pump for' Uorrosive Liquids, 852* Cerium Steel, United States Research, 892 Certificates, National, Institution of Mech
anical Engineers, 12
Chains, Driving, Testing Machine for, 11* Chain-Track Tractor. See Tractor Change-Speed Gear. See Gear ; and Motor-Car
Details.
Channels, Standard, Properties of, 712 Characteristic Curves, Heat Treatment of Steel, 551*. See 384
Charcoal, Adsorption of Gases by, 469
Chart. See Diagram
Chemical Action, Season Cracking of Brass, 262*, 297,* 327*
Analysis. See Analysis
Ceratherm Pump for, 852*
Combinations and Valency, Modern Theories, 382, 529 •
Electric Heaters for, 852*
Fertiliser Works, Explosion of Filter, 742
Society, American, Discussion on Oil Emulsions, 771
Industry, Society of, N. E. Rambush, on Fuels for Producers, 668 ; J. H. West on the Claude Ammonia Process, 732
Laboratory, Intermediate Scale, Imperial College, 12
Reactions, Radiation and Catalysis in, 512. See 411
Tests, Fading of Inks, 259
Works, Report on, 190
Chemistry, Acetic Acid, Synthetic Manufac
ture,• 681
Ammonia Recovery Plant, Leamington Gas Works, 135*
Applied, Reports on Progress (Review), 227
Claude Synthetic Ammonia Process, 732
Colloid, Applied, General Theory (Review), 353*p* of Combustion, 65
of Corrosion. See Corrosion
Dyestuff Industry, Present Position, 530
Formaldehyde and Carbohydrates, Syn-thesis of, 529
Hydrogen Isotope, 382. See 432
Isotopes and Atomic Weights, 382
of Living Organisms, 529
Nitrogen Products, Statistics, 34.5
Notes on Pipettes, 854
Optical Rotatory Dispersion? 33
Structure of Atoms and Molecules, 529
See also PARAGRAPH INDEX
Chemists, Metallurgical, Sheffield Association
of, Address by Sir R. Hadfield, 607 Chevenard, P., on Heat Treatment of Steel,
551*. See 384
Chile Nitrate Trade, Statistics, 345
Chilian Railways, Electrification of, 797
China, British Trade and Foreign. Office Policy, 757
China, Shanghai Harbour, Possibilities, of Im-proving, 797*p * Yellow River Bridge, Tenders for, 517, 540, 567
Chorlton, A. E. L., on Internal-Combustion Engines, 69*. See Erratum, 109
Christiania, Free Port of, 728,* • • Chroinite, World's Output, Effect of War, 140, 165
Chromium Steels, Etching Agent for, 570*p * Steel, High Temperature Tests and Effect of Heat Treatment, 594*
— and Iron, Properties of, 771*, 805* — Turbine Blades, Failures in U .8 . Destroyers, 615*
— Turbine Blades and Pump Rains, 592*
Chronograph, Oscillograph Type, Edinburgh
Observatory, 500*
Chronometers, Testing at N.P.L., 159
Chuck. See Machine Tools
Church Building, Moving and Raising, 842*
Churchill Grinding Machine, Crankshaft
Work, 812* •
Circuit Breakers, Standard Specif1cations, 610
Circulating Pumps. See Pumps
Civil Aerial Transport. See Aeronautics*p * Engineering Profession, Development of, 646. See 635*p * Engineers, American Society of, E. E. Howard on Vertical Lift Bridges, 199*, 234*, 264**p * Engineers, College Course for, 239
Civil Engineers, Institution of :
James Forrest Lecture on Fuel Problems
of the Future, by Sir G. T. Beilby, 26 Engineering Conference. See Engineering Presidential Addfess by W. B. Worth
ington, 646. See 636
History and Development of Institution, 646. See 635
Indian Railway Gauge Problem, by F. G. Royal-Dawson, 696
Deep-Water Quays : General Considera
tions of Design, by E. Latham, 822 Stability of Deep-Water Quay Walls, by
F. E. Wentworth-Sheilds, 822
Awards for Papers, 886
Civil Engineers, Training and Status, 647. See 635
Clarke's Crank and Forge Co., Ltd., Works and Products, 777*, 811*
Clarkson Coke-Fired Steam Lorry, 275*, 630.* See 575, 579
Clarkson, T., on Coke Fuel for Motor Vehicles, 579
Classification of United States Shipping, 794 Claude Synthetic Ammonia Process, 732
Clays, Fire. See Firebricks ; Refractory
Materials
Clayton, C. H. J., on the Conservancy and
Maintenance of Rivers, 120, 130
Clayton Valve Co., Ltd., Valves, 472*
Cleary Oil Burner, Domestic Use, 672
Clements, R. G. H., on Road Vehicles and
Road Surfaces, 119, 129*
Clerk, Sir D., on Water Power, 828
Clerk's Compound Internal-Combustion Engine,
70*
Cleveland Iron Prices. See Metal-Price Diagrams
and the Northern Counties, Notes from

14, 59, 105, 153, 187, 220, 252, 282, 315, 347, 377, 411, 442, 477, 508, 541, 570, 603, 633, 664, 697, 729, 760, 790, 822, 854, 887. See PARAGRAPH INDEX

Technical Institute, 480
Cleworth Ventilating and Humidifying Appa
ratus, 202*
Climate. See Meteorological
Clock, Driving, 72-in. Reflecting Telescope, 243*
Cloud Condensation Apparatus, Cleaning of
Blast Furnace Gas, 58.
with Sharp-Cut Edge, 693
Clutch, Friction, for Winding Engine, 629*
Clyde and Forth Canal, Notes on, 407, 462
Coaches, Railway. See Carriages
Coal Briquetting Press, Duplex, 689*
Brown, Production and Use, 15, 26
Carbonisation in Horizontal Retorts, Gas Manufacture, 561
Carbonisation, Low Temperature, 29, 68, 175*, 596*. See Erratum, 110
- Smith Continuous Process, 175*. See 68
Combustible Constituents, Physical Constants, 78. See 24, 46
Conservation of Supplies, 418
Consumption, Boiler Plants, Possible Reduction, 29
Cost of, and Industrial Prosperity, 26
Deterioration in Quality, 26
Economy. See also Fuel Economy ; Pul-verised Coal
Gas. See Gas
Handling Plant, Holton Heath Cordite
Factory, 706* •
Industry, Basing Wages on Profits, 61
Laboratory Tests and Results in Producers, 668
Liberation of Nitrogen as Ammonia, 562
Meter, Lea, for Chain-Grate Stokers, 416
Mexican, Production and Utilisation, 828
Mines, Accidents in, Effect of Legislation, 418
- Switchboards for, 640
- See also Colliery
Mining, British and American Methods, 608
- British and Foreign Labour Costs, 517
- Machinery, Electrical, Increased Use, 734
Production of the World, 26
Pulverised, and Oil Fuel. See Colloidal Fuel
Pulverised. See Pulverised Coal
Purchase by Calorific Value, 67
Resources, Canadian, 890 •

- - German, 15, 26

Spontaneous Combustion in Mines, 380 ; in Ships' Bunkers, 892
Strike, Principles of Settlement, 61
Subsidy and Industrial Depression, 511. See LETTERS, 567, 728
Tar for Road Work, 738
Wagons, Revolving Tippler for, 706*
Coal Washing, Froth Flotation and Rheolaveur Processes, 24, 45, 76*p * World's Output, Effect of War, 139, 165*p * See also PARAGRAPH INDEX
Coaling Steamers, Floating Crane for Montreal
Harbour, 784*
Coalite, Smokeless Fuel, Manufacture and
Advantages, 29, 68, 596*. See Erratum,
110. See also 175*
Coastwise Shipping, Development of, 32, 109,
111
Cockburns, Ltd., Valves for Marine Turbines,
473*
Coke Breeze, Firing Boilers with, 186
— Fuel for Motor Vehicles, Advantages, 579.
See 275*, 575, 630**p * Liberation of Nitrogen as Ammonia, 562*p * Oven Gas, Hydrogen Production from, 732 Coker, Prof. E. G., on Scratches in Materials, 56, 81
Coking, Coal, Smith Continuous Process, 175*. See 68*p * Low Temperature, of Coal, 29, 68, 175*, 596*. See Erratum, 110*p * of Peat in Vertical Retorts, 545*p * Stoker. See Stoker
Cold-Drawing Bronze, Effect of, 449*p * Storage. See also Refrigeration*p * Stores, Insulation of, 606
— — Measurement of Humidity, 891
— — Tests of Insulating Materials, 192
College. See.Education
Collet System, Railway Track Repairing, 281
Collieries, British and American Mining
Methods, 608
Coal Washing, Froth Flotation and Rheo-laveur Processes, 24, 45, 76
Electrical Apparatus, Safety Bolts, 376 — — Machinery in, 734
Hydraulic Stowage in, 480
Scottish Timbers for Props, 405
Spontaneous Combustion of Coal, 380
Switchboards for, 640
Use of Cement Grouting, 24, 45, 77
of Exhaust Steam in Turbines, 141, 165* Colliery Accidents, Effect of Legislation, 418
Industry, Basing Wages on Profits, 61
Penallta, Tests of Air Compressor for, 535*. See LETTERS, 661
Rescue Apparatus, Liquid Air and Com
pressed Oxygen, 568*. See 431
— — Work and Organisation (Review), 352
Strike, Principles of Settlement, 61
Ventilating Fan, " Regainer " for, 659*
Winding. See Winding
See also Mines and Coal
Collisions. See Accidents
Colloid Chemistry, Applied, General Theory
(Review), 353
Colloidal Fuel, Comparisons with Oil and
Pulverised Fuels, 90. See Erratum, 149*p * — Bar-Heating Furnace, Tests, 124**p * Graphite, Sight-Feed Lubricator for, 57 * Columbia River Bridge, Vertical Lift, 201* Combined Stress. See under Tests (Materials) Combustion, Chemistry of, 65*p * of Oil Fuel, 526
Combusiions Ltd., Oil Fuel Burner, 631* Commerce. See Trade. See also Industries and Commerce in PARAGRAPH INDEX Commercial Aviation. See Aeronautics*p * Motor Cars. See Motor*p — Exhibition, Olympia, 575*p * Situation in Austria, 256
Committee, Engineering Standards. See Engineering and Standardisation Commonwealth. See Australia
Communipaw, Locomotive Ash-Pits at, 125* Compagnie Generale Transatlantique, SS. Paris," 96* 181*, 246*
Companies. See PARAGRAPH INDEX
Comparator, Gear Tooth, Sykes, 103*. See 803* • Compensation Water, Water Supply Schemes, 144, 169
Competition, Air Ministry, Petrol Tanks for Aircraft, 323, 769*p * Domestic Labour-Saving Appliances, 892 Complex Stress Distribution, Report on, 408 Compound Locomotives. See Locomotives*p * Stress. See Tests (Materials)
Compounding, Internal-Combustion Engines, 69*
Compressed Air Hoses, Coupling for, 215**p * — Operating Gear, Floating Dock Valves, 772*, See 720*p * — See also Pneumatic*p * — Tools. See Machine Tools Compressor, Air. See Air Compressor*p * Ammonia, West's High-Speed, 507* Conciliation in Labour Disputes. See Labour ; Industrial Notes; and PARAGRAPH INDEX Concrete Aqueduct Construction, Winnipeg Water Supply, 589*, 621*
— Arch Design, Aqueduct, Winnipeg Water Supply, 621*. See 589**p * Bituminous, for Road Construction, 120, 128
Blocks, Effect of Vibration in Moulding, 11
Construction, Cross Hill Reservoir, 278* — — North London Circular Road, 191
Expansion of, Measurement, 159
Mixing Machine, Ransome Portable, 735*
Machines, Road Construction, 734* — — and Pouring, Winnipeg Aqueduct, 623*
Permeability of, 40, 73. See 23
Reinforced. See Ferro-Concrete
Roads, Tamping Machine for Breaking Up, 735, 853*. See Erratum, 759
Signal Posts and Fences, 36
Slag Aggregate for, 851
Work, Vaal River Barrage, 326
See also Ferro-Concrete and PARAGRAPH INDEX
Condensation Apparatus, Cloud, and Cleaning of Blast Furnace Gas, 58*p * of Steam in Nozzles, 750
Condensers, Air Pumps for. See Pumps, Air
Surface, Cleaning Tubes with Sand, 69
Tubes and Glands, Standard Specifications, 640
See also Electric
Condensing Plant, 12,500-kw. Turbo-Generator
873*, 876*
Conductivity, Thermal, Heat-Insulating Materials, 192*p * See also Electric
Conference, British Engineers' Association, 576*p * Engineering. See Engineering
International, High-Tension Power Trans-mission, 673
Washington, on Disarmament, 704, 858 Congress, Public Works, Roads and Transport, 737. See 734**p * Royal Sanitary Institute, Folkestone, 12 Conical Tubes, Flow of Viscous Liquids through, 711
Connecting Rods, Balancing Machine for, 439* — — Details, Nordberg Winding Engine, 629* Conservation of Coal. See Coal ; Fuel ; Pulverised Coal
Constructional Materials, Johnson's Treatise on (Review), 194
Contact Potentials of Metals, Theory of, 432 Container Cars, New York Central Railway, 820*
Contracts, British Battle Cruisers, Distribution, 605*p * Lump Sum, Law of, 380*p * Terms, Legal Effect of Variations, 62 Control of Internal-Combustion Engines, 58*p * Surfaces, Airship, Pressures on, 651*
Controllers, Electric Motor. See Motors, Eleotrie
Converters, Rotary, Design of Large, 402**p * Tropenas, Steel Foundry, Horwich Works, 834*
Conveyors, Belt, Grain-Handling Plant, Bor-deaux, 312**p * and Elevators, Design and Capacities, 866*. See 859*p * Loading and Unloading Ships, 52, 81. See 859, 864*, 866**p * Water Trough, for Ash-Handling,
231*
Cook, S. S. on Marine Turbine Reduction
Gears, 142, 167
Cooking, Electric, London-Leeds Dining Car
Train, 570
Cooling Coils, Diesel Engine Compressors,
Bursting of, 59, 253
Co-operation. See Labour
Co-partnership. See Labour
Copper Alloys. See Brass ; Bronze ; Gun
metal ; and Alloys under Metallurgy*p * Billets, Rotary Piercing Machine for, 397*, 429*, 495*, 527*. See LETTERS, 612, 660*p * Brewing, Explosion, Report, 343*p * Metallurgy of (Review), 485*p * Plates, Tensile Tests, Effect of Width of Specimen, 389*, 406*p * Prices. See Metal-Price Diagrams*p * Tube Plates, Locomotive Boilers, Repair-ing Cracks, 251**p * Use for Welding, Hyde Process, 338**p * Working and Annealing, 449, 899**p * See also Metallurgy
Cordite Factory, Holton Heath, Coal and Ash
Handling Plant, 706*
Corliss Valves and Operating Gear, Nordberg
Winding Engine, 694*
C'ormack, P., on Balancing Reciprocating
Masses, 778*
Corrosion. Aluminium Alloys, 645. See 627*p * Cast Iron Water Pipes, 145, 168*p * Gas Mains and Services, 563*p * Meters, 342, 563*p * Iron and Steel, Comparisons of Metallic Coatings, 142, 167, 640*p * and Season Cracking of Brass, 262*,
297*, 327*
Corrosive Liquids, Electric Heaters for, 852*
Ceratherm Pump for, 852*
Corundum, Refractory Properties, 537
Cost, Bridge Construction, United States,
202, 235, 267, 268*p * Keeping in Foundries, 894*
—7- — Four-Week Period, 894
Cotton Mills, Steam Pipe Explosions, 102,
839
Couplings, Fire Hose, Standardisation of, 187*p * Hose, Pneumatic, 215**p * Shaft, Flexible, Steel-Link Type, 375**p * See also Clutch
Coyerings, Non-Conducting. See heat In
sulation
Cowper-Coles, S. 0., on Protective Coatings
for Iron and Steel, 142, 167
Cracking, Season, of Brass, andc., 262*, 297*,
327*
Cracks, Copper Tube Plates, Locomotive
Boilers, Repairing, 251*
Craftsmanship, Influence of Automatic
Machine Tools, 50, 80
Crane Accidents and Loads on Chains, 224*p * Boiler Explosion : No Safety Valve, 883*p * for Discharging Large Ships, 21, 31, 38, 52, 81. See 7*
Electric versus Hydraulic, for Unloading Ships, 22, 32, 40*p * 15-cwt. Electric, Self-Propelled, 564**p * Equipment for Floating Docks, 774. See 720*p * Royal Albert Dock Extension, 7**p * Floating, for Coaling Steamers, Montreal Harbour, 784**p * Goliath, Dock Wall Construction, 4**p * Jetties, Ferro-Concrete, Royal Albert
Dock, 6*
Portable, and Grab, for Ditch Clearing, 722**p * Transporter, Walker, Royal Albert Dock Construction, 7*
Crankpin Turning Machine, Gardner, 812* Crankshaft Manufacture, Clarke's Crank and Forge Co., Ltd., 777*, 811**p * Petrol Engine, Proportions, 58*p * Twelve Throw, Doxford Marine Oil Engine,
723*
Crawley Agrimotor Co., Ltd., Hydrohoist,
759*
Creosote, Standard Specification for, 516
Critical Speeds of Shafts, Approximate Cal
culations, 717*
— — Turbine Rotors, 1*
Crook, T., on Mineral Supplies, 139, 165
Cross Bill Reservoir, Birkenhead Water Supply,
287*
Crosshead, Nordberg Winding Engine, 629*
Crucibles of Alumina and Corundum, 637
— Furnaces, Steel Melting, E. Allen and Co.'s
Works, 304*
Crude Oil Engines. See Engines, Oil
Cruisers. See Warships
Crusher, Gyratory, E. Allen and Co., 336*
Cruttwell, G. E. W., on Models for Estuarial
Experiments, 121, 130
Crystalline Structure of Metals. See Metal
lography ; Microphotographs
Cultivating Machine, Simar, 36
Cunliffe and Croom, Ltd., Horizontal Boring
Machine, 33*
Cupolas and Blowers, Foundry, Horwich
Works, 834*
Currents, Electric. See Electric
Cutting Apparatus, Oxy-Acetylene, Olympia,
439*p * Machines, Oxy-Acetylene, Davis-Bournon-ville Co., 274*, 307, 356**p * Tools, Lathe-Type, Lumsden System, 183*,
213*
Cyanogen, Removal from Town Gas, 563
Cycle, Motor. See Motor Cycle
Cyclones, Cause of, 500
Cylinders, Diesel Engine, Heat Transmission
in, 123, 132*p * Large, for Diesel Engines, 123, 132**p * Locomotive, Production of Castings, 834*p * Nordberg Winding Engine, 694**p * Steel, Hot Drawing on Mandril, 678*. See LETTER, 693
Cylindrical Grinding Machine. See Grinding Machine under Machine Tools
D.
DABELL, A. F., on Improving Oil Produc-tion, 827. See 670
Dalby, Prof. W. E., on the Elastic Limit, 55, 81* ; on Engine Indicators, 94
Dalziel, J., on Battery Locomotives, 147, 170 Dam, Alwen, Birkenhead Water Supply, 286**p * Vaal River, Rand Water Supply, 325**p * Scar House, Water Power Plant for Con-struction, 817*
Damascene Steel, Comparisons with High-Speed Steel, 395*
Davey, Paxman and Co., Ltd., Gas Engine and Producer for Wood Refuse, 8*
Davidson, Sir S. C., the Late, 323
Davies, C. E., Rotary Piercing Machine, 397*,
429*, 495*, 527*. See LETTERS, 612, 660 Davis-Bournonville Co., Oxy-Acetylene Cutting
Machines, 274*, 307*, 356*
Deacon, M., on Utilisation of Exhaust Steam, 141, 165*
Deane,- H. J.,
on Cranage Facilities for Discharging Ships, 21, 31, 38
Deflection Indicators for Floating Docks, 773* Denison, S., and Son, Ltd., Spring Buckling Press, 502*
Denny, M. E., on Fabricated Ships, 84, 112 Density of Copper-Zinc Alloys, 585*. See 449 — Water, in Boilers, Indicator for, 57
Denton, W., the Late, 601
Derby 36 Show, Royal Agricultural Society, 7*, *
Detonator Tests, Hardness of Bearing Metals, 394
Deu tsch, F., on German Capital and Labour, 676
Devastation of France, Economic Features, 636. See 383, 418
Dew Point, Distance Reading of, 193. See 890 Dewhurst, J. H., the Late, 315
Dewrance and Co., Aquadag Lubricator, 57* d'Eyncourt, Sir E. H. T., on Protecting Merchant Ships against Submarines, 787* Diagram, Designing Helical Springs, 173**p * Alignment, Gases, Internal-Combustion Engines, 302**p * Heat Treatment of Steel, 551*. See 384*p * Indicator. See Indicator*p * Metal-Price. See Metal-Price Diagrams Dial Gauge Measuring Gear Teeth, 103*, 803* Die Cutting, Oxy-Acetylene Blowpipe', 310**p * Sinking Machine, B. Symons and Co., 341* Diesel Engine Users' Association, Meetings of, 59, 253*p * Engines. See Engines, Oil, Diesel
Dining Cars, Midland Railway, 105 ; Great
Northern Railway, 570
Diplomas, National, Institution of Mechanical
Engineers, 12
Directional Wireless. See Telegraphy, Wireless
Directories, Trade, Omissions from, 540*p * See also LITERATURE INDEX
Disarmament, Washington Conference on,
704, 858
Diseases, Industrial Poisoning, Susceptibility
and Immunity, 159
Dispersion, Optical Rotatory, 33
Disputes, Trade. See Labour
Ditch Clearing, Portable Crane and Grab for,
722*

•* Dixon, Sir R., and Co., Ltd., Cargo Steamer, Cantilever Construction, 339*

Dobson, W. A., on the Registration and Classification of American Vessels, 794
Dock Construction, Ferro-Concrete Work, Deterioration and Protection, 23, 40, 73 — — Schemes in Parliament, 767*p * Dimensions for Future Requirements, 21, 31, 38*p * Dry, Royal Albert Dock Extension, 5**p * Dues and Tonnage Measurement, 704*p * Floating versus Graving, 721*p * — Machinery of, 720, 739*,
772*
— London, Pneumatic Grain Elevators, 864*.
See 859**p * Mechanical Appliances for Loading and Unloading Ships, 21, 31, 38 , 52, 81. See 859, 864*,866*
— Royal Albrt, London, Extension, 2*, 100*p * Suggested Thames Barrage, 22, 31, 30 Dolby, E. R., on Use of Exhaust Steam, 24, 42, 74. See Errata, 153
Domestic Heating, Comparison of Electric, Gas and Solid Fuel, 68
— Latour-Saving Appliances, Competition, 892
Domnarfvets Iron Works, Slag Cement Manu-facture, 103
Donkin, S. B., on Edinburgh Corporation Power Station, 422*
Donop, von, Lieut.-Col. P. G., the Late, 672 Dopes, Aeroplane, N.P.L. Investigations, 192 Double Helical Gears. See Gears*p * Reduction Gears, Marine. See Marine Propulsion
Dowling, J. J., on a Recording Ultra•Micro-meter, 395*. See 469
Dowson and Mason Gas Plant Co., Ltd., Beard-more Quick-Acting Valve, 759* ; Oil and Paint Storage Plant, 632*
Doxford Marine Oil Engine, Crankshaft, 723* Drainage, Fen, Effect of Sluices and Barrages, 121, 130*p * Land, Excavating Machine for, 795
— and River Maintenance, 120, 130*p * Pumps, Centrifugal, at Memphis, 643**p * Road, Treatise on (Review), 290. Drawing, Cold, of Bronze, Effect of, 449*p * Hot, Investigations of, 678*. See LETTER,
693
Dredging River Estuaries, Comparisons with
Training Walls, 121, 131
Dredger " Gunga," for Calcutta, 151
Drills and Drilling Machines. See Machine
Tool
Driving Chains. See Chaim
Drop Forging Dies, Machine for Cutting, 341*
Drum Type Starting Panel, Electric Motors,
726*
Drury, 0. G. C., on Tunnel Maintenance,
21, 30, 49
Dry Cells, Regeneration of, 342*p * Dock. See Dock
Dryers, Steam, Tompkin's, 416*
Drying Apparatus, Electric, for Chemicals, 852**p * Cylinder, Yarn, Explosion of, 217*p * Machine, Centrifugal, Sulphate of Ammonia, 136*
Dryland, A., on Bituminous Macadam, 120, 128 Drysdale Stud Driver and Extractor, 312* Ducey, Lieut.-Com. D. F., on Turbine Blading
Failures, 615*, 647*, See 636
Dunell, H., on Engine House Management, 68 Dupuy, E. L., on Steels at High Temperatures, 391*, 427*. See 384
Dust in City Air, Measurement of, 554*, 555*. See 12, 531, 737*p * Coal. See Pulverised Coal
— Respirators for Protection, 672
Dyestuff Industry, Present Position, 530 Dynamics of Flying. See Aeronautics.*p * of Wind, 693
Dynamos. See Generators, Electric ; 'Purbo

Oonerators

E.
EAGLE Oil Transport Line, S.S. " San Felix," 441*
Earth, Age of, 493
— Capacity Effects, Alternating Current Bridges, 711
— Pressures, Theories of, 123, 132
Earthquake Investigations, Report on, 499 East Asiatic Co., Ltd., Motor Ship " Malaya," 195
Ebury Street Bridge, Reconstruction of, 163* Economic Situation in Austria, 256 Economics, Industrial. See Labour
— Railway. See Railway
Economy, Fuel. See Fuel Economy Economisers and Feedheating, Boiler Plants, 94 Edingburgh Corporation-Power Station, 422**p * Meeting, British Association. See British Association*p * Observatory, Microchronograph at, 500*
Education :
Apprentices, Training at Horwich Works, 836
Bristol University, Appeal for Funds, 226 Civil Engineers, College Course for, 239 — — Training and Status, 647. See 635 Economics, Industrial, Need for Educa
tion, 763
Engineering Students, Certificates and Diplomas of Institution of Mechanical Engineers, 12
Engineers, Education of, Report, 705*p * — Sandwich System, 705
Imperial College, Whiffen Chemical
Laboratory, 12
Manual Training in Schools, 667
Scholarships, Naval Architecture and
Marine Engineering, 15
Secondary Education, Cost and Value, 17*p * Schools, Fostering Originality in, 17 Sheffield, Technical Education in, 607 Training of Skilled Mechanics, 667 Universities, Research Workers in, 607 Younger Research Prize, Glasgow High
School of Science, 17
See also PARAGRAPH INDEX
Efficiency of Boiler Plants. See Boiler Plants — — Engines. See Engines ; Trials
; Thermal, Heat Power Plants, Means of
Improving. See Mechanical Engineers Egerton Mills, Steam Pipe Explosion, 102 Egyptian Oil Field, Geology of, 608
Eichleay, Jun. Co., Moving Buildings, 842* Einstein's Relativity Theory. See Relativity. Ejector, Air, Jet, Condensing Plant, Turbo
Generator, 876*
Elastic Hysteresis, Tensile Tests, 55, 81* — Limit, Definition of, 55, 81*
— — Effect of Strain, 55, 81*
Elce, N., on Steam and Air Flow in Nozzles, 750
Electric :
Accumulator Locomotives for Shunting, 147, 170*p * Vehicles. See Motor Lorries
Alternating Currents, Mercury Vapour Rectifiers for, 403. See 588 Alternator. See Generator and Turbo Arc Furnace. See Furnace, Electric*p * Volatilisation in, Analysis by, 226*p * Welding. See Welding
Electric—continued.
Battery Locomotives, Shunting, 147, 170
— Vehicles. See Motor Lorries
Blind Persons, Employment in Electrical
Work, 715*
Bridges, Alternating Current, Earth
Capacity Effects, 711*p * Anderson's, Measurement of Capacity Variations, 711*p * Method, Voltage Regulation, Photo
meter Lamps, 711
Cables, Buried, N.P.L., Research, 213**p * Reel, Portable Electric Tools, 550* Capacity Effects, Alternating Current Bridges, 711
Measurements, High Frequencies, 212* — Variations with Frequency, Measure-ment, 711
Cells, Dry, Regeneration of, 342
Central Stations. See Power Stitions Circuit Breakers, Standard Specifications, 610
Coal Mining Machinery, Increased Use, 734 Condensers, Variation of Capacity and Resistance, 711
Conductivity and Surface Tension, Rela-tionship, 530
Contact Potentials, Metals, Theory, 432 Cooking Arrangements, London-Leeds Dining Car Train, 570
Cranes. See Cranes
Current Regulator, Selenium, Cable Re-search, 213*
Dynamo. See Generator ; Turbo-Generator Earth Capacity Effects, Alternating Current Bridges, 711
Electrical Industry, Report on Research, 639*p * Trades Union and Municipal Electric Supply, 705*p * Work of N.P.L., 212*
Electricity Commissioners' Report, 638, 857 Electrodes, Dry Cells, Regeneration, 342 Flour Bleaching, Alsop Process, 36 Furnaces. See Furnaces
Generating Stations. See Power Stations Generator. See Generator and Turbo German Reparations and the British Electrical Industry, 829
Heaters, Resistance and Induction, for Chemicals, 852*
Hydro-Electric Power Plants. See Power Plants
Inductance Measurements at High Fre-quencies, 212*
Induction Furnace. See Furnace*p * Heaters for Chemicals, 852*
Insulating Materials, Research Work, 639 Lamps, Gas-Filled, Crystalline Structure of Tungsten Filaments, 102
— — Investigation of Blackening, 102 — for Lighthouses, 212*p * Osglim Low Candle Power, 450* — Photometer, Automatic Voltage Regu-lator, 711
Locomotives. See Locomotives, Electric Machines. See Generators ; Motors Turbo-Generators
Magnetos. See Magnetos
Mains. See Cables (above)
Mercury Vapour Rectifiers Alternating
Currents, 403. See 588
Micrometer, Ultra-Sensitive, Thermionic
Valve Type, 395*. See 469
Motors. See Motors, Electric
Municipal Electricity Undertakings, Sup
ply of Fittings, 734
Oil Switch. See Switchgear
Positive Rays. See Positive
Power Factor Improvement, Distribution
Systems, 47, 79
See Power*p * Stations. See Power Stations
Push-Button Switch, Magnetic Blow
Out, 101*
Pyrometer. See Pyrometer
Railways. See Railways
Rays. See Positive ; Röntgen
Rectifiers, Mercury Vapour, for Alternat
ing Current, 403. See 588
Resistance Heaters for Liquids, 852**p * Standard Unit, N. P. L. Measurements, 212*p * Units for Motor Starters, 99**p * Welding. See Welding
Resonance Effects in Power Transmission,
409, 587*
Röntgen Rays. See Röntgen
Rotary Converters, Design of Large, 402**p * — Sub-Station, Automatic, Toronto Tramways, 747*
Ship Propulsion. See Marine Propulsion. Standard Ohm, Mercury Column, N. P. L . Measurements, 212
Starters, Motor. See Motors, Electric Steel Manufacture. See Metallurgy ; Furnace, Electric
Storage Battery. See Accumulator (above Street Railways. See Tramways
Switchgear. See Switchgear ; Motors,
Electric
Substation. See Substation
Telegraphy. See Telegraphy
Telephony. See Telephony
Traction. See Locomotives, Electric ; Rail
less ; Railways ; Tramways
Train. See Railway, Electric
Tramways. See Tramways
Turbo-Generators. See Turbo-Generators
Vacuum Tubes. See Vacuum Tubes ;
Röntgen
Voltage Regulator, Automatic, Photo
meter Lamps, 711
Wattmeters, Electrostatic, Shape of
Needles, 212*
Welding. See Welding
Winding Gear. See Winding
Wireless Telegraphy. See Telegraphy*p * Telephony. See Telephony
Wiremen, Non-Union and Electrical
Trades Union, 705
X-Rays. See Röntgen Rays
See also PARAGRAPH INDEX
Electrical Apparatus Co., Ltd., Motor Starters, 99* ; County Court Case, Breakage of Machine Casting, 259 ; Relief Bolts for
Mining Apparatus, 376 —1*p * Engineers, American Institute of, W. E.
Thau, on Electric Ship Propulsion, 367* — Engineers, Institution of : Presidential Ad
dress, by J. S. Highfleld, 667*p * Industry, British, and German Reparations, 829
— — Report on Research, 639 ph I*p * Trades Union and Municipal Electric Supply, 705
Electricity Commissioners' Report, 638, 857 Electro-Pneumatic Control, Floating Dock Valves, 772*. See 720*p * Zincing Process, Protection of Iron and
Steel, 142, 167
Electrolytic Corrosion. See Corrosion*p * Etching Metals, for Micro-Examination, 484. See 490*p * Iron, Effect of Heat Treatment, 88. Electron, Magnesium Alloy, Properties, 641 Electrons, Thermionic and Photo-Electric
Emission, 432
Elevators and Conveyors, Design and Capacities, 866*. See 859*p * Grain, Pneumatic, Bordeaux-Bassens, 312*, 370* ; Port of London, 864*. See 859* Ellis, Dr. D., on Iron Bacteria, 457*. See 430 Ellis, Sir W., on Smiths' Work, 766
Ellison, G., Industrial Switchgear, 355 Embankment, Construction, Columbia River Bridge, 202
Emery Wheels. See Grinding under Machine Tools
Empire, British, Proposed Airship Services, 320*p * Proposed Exhibition, 381, 734*p * Water Power Resources, 639
Employees. See Labour
Employers, Need for Organisation, 683*p * Liability. See Labour
Employment. See Labour
Emulsions, Separation of Oil and Water, 771
Endurance Tests. See Alternating Stress under
Tests (Materials)
Energy Radiation, Quantum Theory, Discus
sion on, 434, 467
Engines, Aero. See Aeronautics*p * Balancing, Exponential Analysis, 778* Binary Vapour, Steam-Mercury, 64**p * Diesel. See Engines, Oil, Diesel ; Motor Ships*p * Gas. 50-h.p., Single Cylinder, Horizontal, Davey, Paxman and Co., Ltd., 8**p * — Effect of Tappet Clearance on Timing, 249*
— — Large, British Manufacture, 486. See 402*, 540
— — Cockerill, and Electric Generator, 402*. See 486, 640
— — with Large Cylinders, 123, 132
— — Operated by Sewage Gas, 456*. See 431 — — See also Producer ; and PARAGRAPH INDEX*p * Indicators. See Indicators*p * Internal Combustion, 3-h.p. Air-Cooled, Sleeve Valve, with Flywheel Fan, 538*. _See 37
— — Combustion, Anaude Compensation, 72. See Erratum, 109*p * — Combustion, Atkinson Cycle, 69* — — Combustion, Compound Working, 69**p * Combustion, Continuous Combustion Type, 63. See LETTER, 220*p * — Combustion, Control of, 68*p * — Combustion, Effect of Tappet Clearance
on Timing, 249*
— — Combustion, Indicators for, 94*p * — Combustion, Heavy, Liquid Fuels for, 91 — — Combustion, Means of Improving
Efficiency, 63, 69*. See Erratum, 109.
See LETTER, 220
— — Combustion, Nomographic Chart for Gases, 302**p * — Combustion, at Smithfield Show, 795
— — Combustion and Steam, Still, Develop
ment of, 64 ; TrIals, 344*
— — Combustion, Two Cycle Silent Record
438'
— — Combustion, Water Injection in, 64
— — Combustion. See also Turbines, Gas*p * Locomotive. See Locomotive Engines, Motor Car. See Engines, Petrol*p * Oil, 3-h.p., Air-Cooled, Sleeve Valve, with Flywheel Fan, 538*. See 37*p * Oil, • 7 h.p., and Winch (Parsons Motor Co.,
25*
— — at Derby Agricultural Show, 37, 38
— — Diesel, 300 h.p., Two Cycle Ansaldo
San Giorgio), 721**p * — Diesel, Aluminium Alloy Pistons, 613. See 595, 625
— — Diesel, Bursting of Compressor Coils, 59, 253*p * — Diesel, Fuels for, 91
— — Diesel, Marine, Auxiliary Compressors
for, 435**p * — Diesel, Marine, Cammellaird-Fullagar,
M.S. " Malia," 503
— — Diesel, Marine, Data of Motor Ships,
168. See 143
— — Diesel, Marine, Doxford, Crankshaft for,
723*
— — Diesel, Marine, with Electric Trans
mission, 357* 765
— — Diesel, Marine, Heat Transmission in,
123, 132
— — Diesel, Marine, with Large Cylinders, 123,
132*
— — Diesel, Marine, M.S. " Malaya," 195
— — Diesel, Marine, Recent Progress, 143, 188*p * — Diesel, See also Motor Ships ; Diesel
Engine U sera' Association
— — Effect of Tappet Clearance on Timing,
249*
— — with Electric Generator and Air Com
pressor (Parsons Motor Co., Ltd.), 374*
— — Heavy, Fuels for, 91*p * — Means of Improving Efficiency, 83, 69*. See Erratum, 109. .See LETTER, 220*p * — at Smithfield Show, 795
Engines, Oil and Steam Combined, Still, Development, 64 ; Trials, 344*
— Two-Cycle, Rotary Blower for Scaveng
ing, 435*
— — Water Injection in, 64
— See also Tractors and PARAGRAPH INDEX*p* Petrol, Balancing, Exponential Analysis,
778*
— — Balancing Machine for Connecting Rods,
439*
— — Control of, 68
— Effect of Tappet Clearance on Timing,
249**p * — Means of Improving Efficiency, 63, 60*.
See Erratum, 109. See LETTER, 220
— — Motor Car, Starting Devices for, 437*
— — Proportions of Crankshafts, 58
— — Small, Production of, 413
— — Aeroplane. See Aeronautics*p * Steam, Advantages of High Pressures and Temperatures, 64**p * — Advantages of Superheating, 89
— — Compound, Vee Type, Clarkson Lorry,
278*
— Compound, Winding, Nordberg Manu-facturing Co., 565*, 628*, 694*, 752*
— and Electric Generators, Ship Lighting (Campbell and Isherwood, Ltd.), 416*
— — Marine, Early, in the Navy, 486. See 452
— — Marine, Quadruple Expansion, S.S. " P.L.M. 20 " 339*
— — Marine, See also Marine Propulsion ; Turbines
— and 011 Combined, Still, Development, 64 ; Trials, 344*
— Pumping, Comparisons with Turbine Driven Pumps, 23, 42, 74. See LETTER. 279. See also 430, 644*
— — Sources of Loss in, 68
— Traction, and Road Roller, Fowler's Convertible, 36*p * — Traction. See also Tractors
— Utilisation of Exhaust, 24, 42, 74, 141, 165*. See Errata, 153*p * Winding. See Winding
See also PARAGRAPH INDEX
Engineers, American, Message to British
Engineers, 19*p * Association, British, Conference, 576*p * Civil, College Course for, 239
— — Training and Status, 647. See 635 Education. See Education ; Apprentice-ship*p * Institutions of. See Institutions*p * and Labour Problems, 635*p * and Municipal Councils, 545*p * Production, Institution of. See Production*p * and Shipbuilders in Scotland, Institution of, Presidential Address, by H. E. Yarrow, on Shipbuilding Research, 574 ; J. Anderson on Tonnage Measurement, 704 ; Report on Education of Engineers, 705.*p * Technical, Society of, 481*p * Young, and the Junior Institution, 255, 733.
See LETTERS, 278, 311, 346, 372 Engineering Apprentices. See Apprentices. — British, in China, and Foreign Office Policy,
757*p * as a Career, 692, 756, 785, 819, 851. See Erratum, 887), 886*p * Civil, Development of Profession. 646. See 635
Engineering Conference :
Opening Proceedings, 18
American Engineers' Message to British
Engineers, 19
Presentation of John Fritz Medal to Sir
R. Hadfield, 9. See 63
Reports of Discussions, 20, 38, 111, 138
Value of Engineering Conferences, 155
Section I—Railways, Roads, Bridges and Tunnels
Reports of Discussions, 20, 49, 118 Structural Outlines of Home Railways, by A. Ross, 20, 30
Tunnel Maintenance, by 0. G. C. Drury, 21, 30, 49
Use of Reinforced Concrete on Railways, by W. W. Grierson, 49, 79
Impact Tests and Allowances, by H. J.
Fereday, 50, 80, 118. See 189 Advantages of Bituminous Macadam, by
A. Dryland, 120, 128
Road Vehicles and their Relation to Road Surfaces, by R. G. H. Clements, 119, 129*
Sections II and V—Harbours, Docks, Rivers and Canals ; Shipbuilding.
Reports of Discussions, 21, 38
Dock Dimensions to Provide for Future Requirements, by C. R. S. Kirkpatrick, 21, 31, 38
Ship and Harbour Design and Equipment, as Affecting the Rapid Loading and Discharging of Cargo Vessels, by A. R. T. Woods, 21, 31, 38
Development of Cranage Facilities for Discharging Large Vessels, by H. 3. Deane, 21, 31, 38
Section II—Harbours, Docks, Rivers and Canals.
Reports of Discussions, 23, 40, 120
Reinforced Concrete for Wharves and Breakwaters, by G. FitzGibbon, 23, 40, 73. See Erratum, 152
Best Way of Protecting Reinforced Con-crete from Marine Deterioration, by F. E. Wentworth-Sheilds, 23, 73
Reasons for Deterioration of Reinforced Concrete Structures above Mean Tide Level, by L. H. Savile, 23, 73
Conservancy and Maintenance of Rivers from the Point of View of Land Drainage, by C. H. J. Clayton, 120, 130
Effect of Sluices and Barrages on the Discharge of Tidal Rivers, by R. F. Grantham, 121, 130
Engineering Conference-continued.
Utility of Models for Estuarial Experiments, by G. E. W. Cruttwell, 121, 130
Relative Advantages of Dredging and Training Walls in Estuaries, by H. C. Reid, 121, 131
Use of Inertia Gauges in Pile Driving, by E. Latham, 123, 131*. See 684*, 756, 851
Bearing Power of Soils, by A. L. Bell, 123, 132
Section III-Machinery.
Reports of Discussions, 23, 42, 50, 123 Exhaust Steam : Its Employment for Power, Heating, andc., by E. R. Dolby, 24, 42, 74. See Errata, 153 Comparison between Reciprocating Pumping Engines and Turbo-Driven Centrifugal Pumps, by H. Lupton,

23, * 42, 74. See LETTER, 279. See also 430, 644*

Influence of Automatic and Semi-Automatic Machines on Operators, by A. H. Hall, 60, 80
Mechanical Appliances and Labour in Loading and Unloading Ships' Cargoes, by A. Musker, 52, 81
Internal Combustion Engines with Large Cylinders, by Sir J. McKechnie, 123, 132*
Sections III and VII-Machinery ; and Electricity Works and Power Transmission.
Reports of Discussions, 138
Mechanical Advantages of Electric Locomotives Compared with Steam, by Sir V. L. Raven, 138, 164. See
793, 859

•

Section I V-Mining and Metallurgical Pro-cesses.
Reports of Discussions, 24, 43, 54, 111, 139 Employment of Water Power in the Mineral Industry, by J. W. Evans,

24, * 44, 76

Recent Developments in Coal Cleaning
Processes, by It. Nelson, 24, 45, 76 Frangois Cementation Process, by H. S.
Ball, 24, 45, 77
The Elastic Limit, by Prof. W. E. Dalby, 55, 81*
Effects of Scratches in Materials, by Prof. E. G. Coker, 56, 81
Damage to Tyres and Rails by Brakes or Slipping Wheels, by C. P. Sandberg, 54, 82*
Existing Practice of Inspecting Work and Materials, by G. Hatton, 84, 111. See LETTERS, 149, 248
Effect of the War on Mineral Supplies, by T. Crook, 139, 165
Utilisation of Exhaust Steam in Turbines, by M. Deacon, 141, 165*
Steam versus Electric Winding, by W. C. Mountain, 141, 166
Relative Values of Protective Metallic Coatings for Iron and Steel, by S. 0. Cowper-Coles, 142, 167
Section V-Shipbuilding.
Reports of Discussions, 111, 142
Development of the Coasting Trade, by W. L. Roxburgh, 32, 111. See 109
Design of Fabricated Ships from the Labour-Saving Point of View, by M. E. Denny, 84, 112
Economy of Labour on Shipbuilding as Effected by Fabricated Ships, by J. C. Telford, 84, 112
Ships' Propellers : Note on Cavitation as Affecting Propulsive Efficiency, by E. R. Mumford, 85*, 114
Experience with Marine Turbine Reduction Gears, by R. J. Walker and S. S. Cook, 142, 167
Recent Progress in Large Diesel Engines for the Mercantile Marine, by J. Richardson, 143, 168
Section VI-Waterworks, Sewerage and Gas Works.
Reports of Discussions, 24, 45, 114, 144 Utilisation of Waste Heat in Gasworks,
by G. E. Stewart, 24, 45, 77 Desiderata in the Qualities of Town's
Gas, by Dr. J. S. G. Thomas, 24,
46, 78
Straw Filters for Sewage Purification, by E. H. Richards and M. G. Weekes,

86, * 114. See Erratum, 153 Activated Sludge, by J. Haworth, 86, 115 De-Watering Sludge, by J. D. Watson, 87, * 115

Pipes for Pressure Conduits,, by F. W. Macaulay, 145, 168
Relation of Run-off to Rainfall, by Dr. H. Lapworth, 146, 169. See Errata, 195
Compensation Water, by E. Sandeman, 144, 169
Section VII-Electricity Works and Power Transmission.
Reports of Discussions, 47, 117, 147
Low Power Factor, by R. 0. Kapp, 47, 79 Low Voltage Overhead Distribution, by B. Welbourn, 87, 117
Economic Limits of Distribution from Coal-Fired Stations, by W. B. Woodhouse, 117, 128*
Battery Locomotives, by J. Dalziel, 147, 170
Engineering Contracts. See Contracts ; Legal
Education. See Education ; .Apprenticeship - Firms, British, Representation Abroad, 317
Goods, National Hall Mark, 825
Industry, Production of Small Machinery,
413
Instruments, Treatise on (Review), 227
Laboratories. See Laboratories ; National Physical
- and Machinery Exhibition, Olympia, 374*, 414*, 435*, 470*. See 417, 481, 543
Engineering Manufacturers and Overseas Trade, 540
Marine, Research and Progress iu, 574
Production, Increasing, Employers' 156
Schemes in Parliament, 766
Societies. See In8titutioit8.
Standards Association, Standardisation in Motor-Car Industry, 15 ; Standardisation of Fire Hose Couplings, 187 ; Standardisation of Ball and Roller Bearings, 187 ; Annual Report, 236 ; Specification for Tramway Tyres, 315; Specification for Tramway Axles, 475 ; Specification for Creosote, 516 ; Specifications for Switches and Circuit Breakers, 610 ; Specifications for Condenser Tubes and Glands, 640 ; Pro-perties of Beams and Channels, 712 ; National Hall Mark, 825
Steels, Properties of (Review), 386
Students, Certificates and Diplomas of Institution of Mechanical Engineers, 12
Trade, Bankruptcy Statistics, 797
Water Power, Treatise on (Review), 736
Work, Need for Inspection, 543 — Variations in Contract Terms, 62
Works. See Works
Equilibrium Diagrams, Alloys. See Metallurgy Erie Railroad, Locomotive for, 745*
Escher, W ss and Co., Turbine Locomotive, 292* Estuaries, Dredging and Training Walls, Com-par n.s, 121, 131
Tidal Flow and Silting, Investigations by
M els, 121, 130
Etchin Agent for Special Steels, 570
El ctrolytic, Metals, for Micro-Examination. 84. See 490
trained Steel, Figures Produced, 809* Ether, Motion of. See Relativity
European War, Claims for Compensation, 108 — Effect on Austrian Trade, 256
Effect on Merchant Shipping, 157
— — Effect on Mineral Supplies, 139, 165
— Employment of Blind in Workshops, 715**p * — French Iron and Steel Industry, Damage
and Reconstruction, 383. See 418, 636 — — German Reparations and British Elec
trical Industry, 829
— — History of Naval Operations (Review), 767
— — Merchant Shipping, Protection against Submarines, 787**p * Mining Work in, 766
Patent Acceptances, Effect of Delay, 156
Reconstruction in France, Economic
Features, 636 See :383, 418
and Transport in Roumania, 351
Use of Poison Gases, 382
Work of British Railways (Review), 845
7 — Ypres to Verdun, Photographs (Review), 98
— See also PARAGRAPH INDEX
Eutectic Alloys. See Alloys under Metallurgy Evans, E. V., on Chemistry of Combustion, 65 Evans, J. W., on Water Power, 24, 44, 76 Evaporation from Water Surfaces, 258 Excavating Machine, Dock Construction, Port
of London, 4*
— — Grab Type, for Ditch Clearing, 722* — — for Land Drainage, 795
Excavation, Rock, Vaal River Barrage, 326
Work, Winnipeg Aqueduct, 622
Exhaust, Motor Car, in Tunnels, Investiga
tions, 872
Steam Feed Heater, Locomotive, Weir's,
150*
Turbine. See Turbine, Steam
Utilisation for Power and Heating, 24,
42, 74, 141, 165*. See Errata, 153
Exhausters, Air, Turbine and Reciprocating,
for Grain Elevators, 313*, 859*, 865
Exhibition, Aeronautical, Paris, 795, 862
— Agricultural Show, Derby, 7*, 36*
— — Smithfield Show, 795
— Boiler House Accessories, 56*
Brewers', Agricultural Hall, 638
British Empire, Proposed, 381 ; Research Fellowships, 734
Commercial Motor, Olympia, 575
Floating, of British Goods, 446. See 377, 723, 819*p*Motor Car, Olympia, 670*p — Cycle, Olympia, 764
Public Works, Roads and Transport, 734*. See 752, 769*, 769, 853*. Congress, 737
Shipping, Engineering and Machinery, Olympia, 374*, 414*, 435*, 470*. See 417, 481, 543
See also PARAGRAPH INDEX
Expansion of Concrete, Measurement, 159
Thermal, Reversible, of Silica, 576* Experimental Tank. See Tank ; Ship Models Ship Resistance*p* Wireless Stations (Review), 160
Explorers, Scientific and General Hints
(Review), 815
Explosion, Boiler. See Boiler Erplosion
Brewing Copper, 343*p Fertiliser Filter, 742
German Nitrogen Fixation Plant, 443*p*Laundry Calender, 583
Steam Chest on Trawler, 711
— Pipes, Water Hammer Action, 102, 839
Stop Valve of Steam Hammer, 537. See Erratum, 570
Vulcanising Pan, 236
Yarn Drying Cylinder, 217
Explosives, Accidents in Manufacture and Use,
109
Factory, Holton Heath, Coal and Ash
Handling Plant, 706*
— in 1920, Report, 109.
Testing Hardness of Bearing Metals by, 394
See also Guns and Ea plosives in PARAGRAPH INDEX
Exponential Analysis, Balancing of Reciprocating Masses, 778*
Export Trade. See Trade ; and Industries in PARAGRAPH INDEX
Extractor, Stud, The Drysdale, 312* Extrusion of Aluminium Alloys, 615. See 626
of Brass, 483, 487*, 609
F.
F.O.D. Lifting Jack. for Motor Cars, 027* Fabric, Airship, Measuring Permeability, 57* Fabricated Ships. See Ships
Factories, First Aid in, 224
Textile, Ventilation and Humidification, 202*
Welfare Work in. See Labour

Factory Accidents. See Accidents

Management. See Works Management Fan, Colliery Ventilation, " Rcgainer " for, 659
Flywheel, for Air Cooled Oil Engine, 538*. See 37
Sirocco, Blowing Cupolas, 834*
Standardisation of Capacities, 567, 612
Faraday Society : High Temperature Pheno-mena of Tungsten Filaments, by C. J. Smithells, 102 ; Discussion on Radiation Theory of Chemical Action, 512. See 411 ; J. N. Greenwood, on Properties of Cad-mium, 766 ; Prof. A. 0. Rankine on Structure of Gaseous Molecules, 827
Farming. See Agriculture ; Tractors
Fastnut, Ltd., Self-Ratcheting Spanner, 473* Fatigue Tests of Metals. See Alternating Stress under Tests (Materials)
Federation of American Engineering Societies, 6:3
Feed Heater, Exhaust Steam, Locomotive, Weir's, 150*
— Intermediate Type, Turbo-Generator, 874**p * Heating and Economisers, Boiler Plants, 94 — — Locomotives, Economy of, 89*p * Pumps. See Pumps
— Water Regulators, Automatic, 277*, 785* Fen Drainage, Effect of Sluices and Barrages, 121, 130
Tereday, H. j., on Impact Tests and Allowances, 50, 80, 118. See 189
Ferro-Concrete Caissons, Construction of Wharves and Breakwaters, 23, 40, 73. See Erratum, 152*p * — Construction in Tropics, 50
— Crane Jetties, Royal Albert Dock, 6*
— — Floors, Testing Machine for, 11
— Marine Structures, Deterioration and
Protection, 23, 40, 73
— Construction, North London Circular
Road, 191
— — Pipe Construction, Winnipeg Aqueduct,
624*
— — Roads and Underground Mains, 738
— Sheds, Royal Albert Dock Extension, 7*
— Signal Posts and Fences, 36
— Slabs, Strength Calculations, 209*, 245*.
See Errata, 246, 283
— Tower, Wireless Station, Vibrations of,
196*
— Use on Railways, 36, 49, 79*p * Water Mains, 145, 168
— Work, Permeability of Concrete, 40, 73.
See 23
— Work, Vaal River Barrage, 326
— — See also PARAGRAPH INDEX
Fertilisers, Chemical, Production Statistics, 345*p * Filter, Explosion of Cover, 742
Fettling Shops, Steel Castings, E. Allen and Co.'s
Works, 336*
Fieldner, A. C., Investigations of Motor Car
Exhaust in Tunnels, 872
Files, Manufacture, E. Allen and Co., 306*
Films, Metallic, Properties of, 878
Filters, Air, for Air-Compressor Plant, 535*
— Fertiliser, Explosion of Cover, 742
Straw Sewage Purification, 86, 114. See
Erratum, 153
Finance in United States, (Review), 514
Fire Alarm, Smoke Detecting, 221
Fires, Colliery, Spontaneous Combustion, 380*p * Hose Couplings, Standardisation, 187
— in Ships' Bunkers, Report on, 892 , Firebricks, Effect of Coal Gas, 560*p * Silica, Thermal Expansion, 576**p * See also Refractory Materials
Fireclay and Silica Mixtures, Softening of, 560
Stourbridge, Compositions, 601
Firth, T.,
and Sons, Stainless Steel„ 592* Fittings, Electrical, Supply by Local Authori-ties, 734
FitzGibbon, G., on Reinforced Concrete for Wharves and Breakwaters, 23, 40, 73. See Erratum, 152
Flanders, Photographs of War Areas (Review), 798
Flanging Machine. See Machine Tools
Flax Pulling Machine, Marshall's, 795
Flexala Centrifugal Pump, 643*
flexible Shaft Coupling, Steel-Link Type 375* Flight. See Aeronautics
Floating Crane. See Crane
Dock. See Dock
— Frame, Turbine Reduction Gears, Advant
ages, 179. See 143. See LETTERS, 311, 659 Floors, Ferro-Concrete, Testing Machine for, 11 Flotation, Froth System of Coal Washing, 24,
45, 76
Flour Bleaching, Alsop Electrical Process, 36 Flow of Solids, Sir G. Beilby's Work (Review), 878
Fluid Flow in Pipes, Boundary Conditions, 10**p * Pressure, Stresses in Ships' Plating, 368*,
405. See LETTERS, 410*, 486, 540*, 567,
612, 640, 693
Fluorescence, Time Interval in, 433*
Flying "oats. See Seaplanes under Aeronautics
--= Machines. See Aeronautics
Flywheel Fan for Air-Cooled Oil Engine, 538*.
See 37
Folkestone, Royal Sanitary Institute Congress,
12.
Forging Aluminium Alloys, 613. See 596,626*p * Comparisons of Hammers and Presses, 700. See LETTERS, 728, 756, 786, 851*p * Drop. See Drop Forging*p * Hot Drawing on Mandril, 678*. See LETTER, 693*p * Hydraulic, Treatise on (Review), 450*p * Press. See Press under Machine Tools*p * Processes, Crankshaft Manufacture, 778*, 811*
Forginus, Heavy, Manipulating Machine for, 151*
Formaldehyde, Synthetic Production, 529 Formosa, Water Power Development, 159 Forrest Lecture on Fuel Problems, by Sir G. T.
Beilby, 26
Forster, Dr. M. 0., on the Laboratory of the Living Organism, 529
Forth Bridge, Comparison with Quebec Bridge, 531*p * and Clyde Canal, 407, 462
Foundations, Bearing Power of Soils, 123,
132*p * Pier, Vertical Lift Bridges, 201, 264**p * Pile, Gauging Penetration, 123, 131*, 684*. See LETTERS, 756, 851
— Work, Use of Cement Grouting, 24, 45, 77 — Winnipeg Aqueduct, 621, 622*
Foundry Costs and Establishment Charges, 894*
Iron and Steel, Horwich Works, Control, 832**p * Practice, Casting Aluminium Alloys, 613. Seo 624.*p * — Casting of Brass Ingots, 452*. See 449 — — Grey Iron Castings, 892.*p * Steel, E. Allen ct Co.'s Works, 306*, 335**p * See also Castings ; Moulding
Fowler, G., the Late, 800
Fowler, J., and Co., Ltd., Convertible Road
Roller and Traction Engine, 36
Fowler, Sir H., on Superheating, 89
Fox, Sir C. D., the Late, 703*. See 720
Frame Aerial, Shielded, Reception of Electric
Waves, 434
France, Photographs of War Areas (Review),
798*p * War Devastation and Reconstruction, Economic Effects, 636. See 383, 418*p * See also French
Francis Turbines. See Turbines, Hydraulic Francois Cement Grouting Process, 24, 45, 77 Fr6mont, C., Presentation of Bessemer Medal, 383
French Aircraft, Paris Aeronautical Exhibi-tion, 795, 862*p * Atlantic Liner " Paris," 96*, 181*, 246**p * Iron Ore Deposits, 383. See 418*p * Iron and Steel Industry, War Damage and Reconstruction, 383.- See 418, 636*p * Naval Policies, 318
Trials, Agricultural Tractors, 676*p * See also France
Frequency Measurements, Vibrations, Appa
ratus for, 469*
Friction Clutch. See Clutch*p * Tests, High Speed Bearings, 11
Frictional Resistance of Ships. See Ship
Resistance
Fritz Medal, Presentation to Sir R. Hadfield,
19. See 63
Froth Flotation Process, Coal Washing, 24, 45,
76
Froude Experimental Tank, N.P.L., Work of,
98
Fry, Dr. lug. A., on Strain Figures in Etched
Steel, 809*
Fullagar Engines, M.S. " Malia," 503
Fuel, Brown Coal, Production and Use, 15, 26*p * Chemistry of Combustion, 65*p * Coke Breeze and Bituminous Coal, Boiler Firing, 186
— — for Motor Vehicles, Advantages, 579. See 275*, 575, 630**p * Colloidal. See Colloidal Fuel*p * Consumption, Boiler Plants, Possible
Reduction, 29
— — Marine Diesel Engines, 143, 168*p * Domestic Heating, Comparisons of Gas, Electric and Solid, 68*p * Economy and Locomotive Boiler Design,
743 I • .

- - Report on, 531*p * — Scientific Control of Boiler Houses, 67,

92. See LETTER, 149
— — Utilisation of Blast Furnace Gas, 66*p * Gas Producer, Laboratory Tests and Work
ing Results, 668
— for Heavy Oil Engines, 91*p * Lignite Briquetting in Canada, 615*p * Liquid, Colloidal and Pulverised, Relative
Advantages, 90. See Erratum, 149
— — See also Oil Fuel*p * Low Temperature Carbonisation of Coal, 29, 68, 175*, 596*. See Erratum, 110*p * Motor. See Alcohol ; Benzol; Gas ; Motor ; Paraffin ; Petrol ; Producer*p * Oil. See Oil Fuel*p * Peat, Production and Use. 15, 27, 28*p * Problems of the Future, 20
Recovery from Boiler Furnace Refuse, 797*p * Research Board, Peat Carbonisation, 545 — Station, East Greenwich, 564*p * Resources, German, 15, 26*p * Smokeless, Carbocoal, Manufacture of 175*. See 68*p * Supplies, Effect of War, 139, 165*p * See also Coal ; Oil ; Gas ; Peat ; Pulverised, Coal
Furnace, Bar-Heating, Colloidal Fuel Tests, 124**p * Blast, Gas-Cleaning Plant and Shimizu-Wilson Apparatus, 58
Sulphur Recovery from Slag, 221*p * — Utilisation of Gas, 66*p * Boiler, Air Heaters for, 57*, 92. See 65 — — Steam Consumption of Steam Jets, 92 — — See also Stoker*p * Combustion of Oil Fuel in, 536*p * Crucible, Steel Melting, E. Allen and Co.'s Works, 804**p * Electric, Heroult, E. Allen and Co.'s Works,
336*
— — Production of Silicon-Manganese in, 252*p * — Slag Cement Manufacture in, 103*p * Gas, Use in Shipyards, 479*p * Steel, Siemens, Horwich Works, 835*p * Tunnel Oven, Marlow Gas-Fired, 536 Oil Fired, 537*p * See also Coke Ovens ; Cupolas
Furness Shipbuilding Co., Oil and Paint Storage
Plant, 632*
Fusion Welding. See Welding
G.
GALVANISING Systems, Comparisons, 142, 187
Gannow Pulveriser, House Refuse, 735. See 890 Gantry, Steel, Grain-Handling Plant, 312* Gardner, It., on Vibration of Propeller Shafts,
363*. See LETTER, 661
Gardner Crankpin Turning Machine, 812* Garforth, Sir W. E., the Late, 516
Gas, Blast Furnace, Utilisation of, 66*p * Calorimeters, Recording, Report, 546. See 571*p * Carbon Monoxide, Poisoning by, 259. See 319*p * Cleaning Plant, Blast Furnace, and Shimizu-Wilson Apparatus, 58*p * Coal, Effect on Refractories, 560*p * Coke Oven. See Coke Oven*p * Cylinders, Tests of, 12
Engine. See Engine, Gas*p * Engineers, Institution of : Annual Meeting, 646, 560. See 477 ; Presidential Address, by T. Goulden, 646 ; Report on Recording Gas Calorimeters, 546. See 571 ; Report on Blue Water Gas, 547 ; Report on Refractory Materials, 560 ; Steaming in Vertical Retorts, by Sir G. Beilby, 363, 560 ; Carbonisation in Horizontal Retorts, by G. M. Gill, 561 ; Report on Liberation of Nitrogen from Coal and Coke as Ammonia, 562 ; Tar Distillation and Sulphate of Ammonia Manufacture, 562 ; Report. of International Commission on Illumination, 562 ; Report on Life of Gas Meters, 342, 563 ; External Corrosion of Mains and Services, by J. G. Taplay, 563 ; Visits, Excursions and Social Events, 564.*p * Exhaust, Motor Car, in Tunnels, Investigations, 872*p * Fired Furnaces. See Furnaces*p * Industry, Co-partnership in, 546 — — Development of, 546*p * Manufacture, Carbonisation in Horizontal Retorts, 561*p * — Removal of Cyanogen, 563
— — Steaming in Vertical Retorts, 363, 560*p * — Sulphate of Ammonia Plant, 562*p * — Tar Distilling Plant, 562
— — Water Gas in, Report, 547. See 546*p * Meters, Life of, Report, 342, 563*p * Permeability, Airship Fabric, Measuring, 57**p * Pipes, External Corrosion, 583*p * Producer. See Producer*p * Sale by Calorific Standard, 29, 546*p * Sewage, Power rroduction from, 466*. See
431
— for Street Lighting, 737*p * Supply, Schemes in Parliament, 767*p * Town, Carbon Monoxide in, 318. See 259
— Desiderata in Qualities, 24, 46, 78
— — Incombustible Constitutents, 351
— — Use in Shipyards, 479*p * Turbine. See Turbine*p * Water, Domestic and Industrial Uses, 318. _See 250
in Gas Manufacture, Report, 547. See 546
— Manufacture, Utilisation of Waste Heat,
24, 45, 78
— Welding. See Welding
— Works, East Greenwich, Visit to, 564
— — Leamington, Sulphate of Ammonia
Plant, 136*
— — Utilisation of Waste Heat, 24, 45, 77
— and Gas Works. See also PARAGRAPH
INDEX
Gases, Adsorption by Charcoal, andc., 469
— Electric Discharge in. See Electric ; Vacuum
Tubes
Nomographic Chart for, Internal-Combus
tion Engines, 302*
— Poison, in Warfare, 382
— See also Acetylene ; Carbon Dioxide ; Car
bon Monoxide ; Hydrogen. ; Nitrogen ;
Oxygen, andc.
Gaseous Explosions, Production of Nitric Acid
by, 230
— Molecules, Structure of, 827
Gasification of Peat in Vertical Retorts, 545
Gasoline. Sec Petrol ; Engine, Petrol ; Aero
nautics
Gates, Lock, Royal Albert Dock Extension, 5*
Gauge, Dial, Measuring Gear Teeth, 103*, 803*
— Flatness of End Faces, 159
Inertia, Penetration of Piles, 123, 131*,
684*, See LETTERS, 756, 851
— Measuring, Work of N. P. L., 168
— Petrol, for Motor Cars, Pallas, 693*
— Problem, Indian Railways, 696
— Screw, Measuring Internal Diameters, 159,
558*
Gauging Machine for Steel Balls, 60*
Gayler, Miss M. L. V.,
on Aluminium Alloys,
519*. See 484, 509
Gear Boxes, Motor Car. See Motor Car Details
— Cutting Machines. See Machine Tools
— Teeth, Grinding, Motor Car Gear-Boxes,
871*. See 897
— Testing Machine, Saurer, 801*
— Tooth Comparator, Sykes, 103*. See 803*
— Worm for Telescope Drive, Method of Cut
ting, 244*
Geared Turbines, Marine. See Marine Propul
sion
— Turbo-Generator, Ship Lighting, 474*
Gearing, Lubrication of, 802
Maag, Production and Applications, 801*
— Spur, Testing Machine for, 11*
Genders, R., on Casting Brass Ingots, 452*
See 449 ; on the Extrusion Defect, 487*.
See 483
General Electric Co., Ltd., Osglim Lamp,
450*
Generating Station. See Power Station
— Machine, Gear. See Gear undor Machine
Tools
Generators, Electric, 32,500 KVA., Niagara
Power Plant, 403*
— — Design of Large Units, 399*. See
Erratum, 538. See also 486, 640
— Induction, for Small Water Power Plants,410
Generators, Electric, and Oil Engine, Parsons Motor Co., Ltd., 374*
Steam Driven, for Ship Lighting, 416*
See also Turbo-Generators

Geology, Age of the Earth, 498*p * of the Egyptian Oil Field, 608

Hints to Travellers (Review), 815
Refractory Materials of London Basin, 536. Geophysical Observatory, Lerwick, 500 George V. Dock. See Royal Albert
German Armour Plates, British Trials, 419, 610*. See Erratum, 633
Industries, Remuneration of Capital and Labour, 676
Investigations, Planing Machines, 886 Nitrogen Fixation Plant, Explosion, 443
Reparations and the British Electrical' Industry, 829
Submarines, Protection of Merchant Ships against, 787*
-- Trade. See Trade and PARAGRAPH INDEX Germany, Cost of Labour in, 517
Employment of Blind in Workshops, 715*
Fuel and Water Power Resources, 15, 26
GOttingen Aerodynamic Experimental Station, 218*
— and the International Patent Convention,607 Gibbs, A.W., on Electric Locomotive Drives,793 Gibson, Prof. A. H., on Water Power, 420. See
406 ; Tests of Hydraulic Turbine, 504* Gilkes, G., and Co., Ltd., Tests of Hydraulic
Turbine, 504*
Girders, Plate, Stresses in Webs, 349*p * See also Beams ; Bridges ; Floors
Gisholt Machine Co., Automatic Turret Lathe, 463*
" Giulio Cesare," S.S., Propelling Machinery,662* Glands, Condenser Tube, Standard Specifications, 640*p * Labyrinth, Turbo-Generator, 874* Glasgow Air-Cooled Oil Engine, 538*. See 37*p * High School of Science, Younger Research
Prize, 17
Glass, Melting of, 776*p * Models for Stress Determination. See Optical Determination of Stress*p * Technology, Society of ; Compositions of Pot Clays, by G. V. Evers, 601 ; Lime-Magnesia Glasses, by Miss V. Dimbleby, S. English, F. W. Hodkin and Prof. W. E. S. Turner, 601 ; Discussion on Glass Melting, 776 ; Method of Investigating the Viscosity of Glass, by I. Masson, N. F. Gilbert and H. Buckley, 854 ; Notes on Pipettes, by V. Stott, 854 ; On the Annealing of Glassware and on Annealing without Pyrometers, by F. Twyman, 854
— Viscosity of, Method of Investigating, 854
Glasses, Lime-Magnesia, Properties and Appli
_ cations, 601
Glassware, Annealing, Twyman Method, 854 Glow Lamps. See Lamps under Electric Gold Films, Properties of, 878*p * Metallurgy of (Review), 485*p * Mine, New Modderfontein, Air Compressor for, 535*. See LETTERS 661
Golf Balla, Testing Machine for, 438*
Goodby, Sir K., on Industrial Diseases, 159 Goods Wagons, Railway, Container Car System, 820*
Gordon, W., on Width of Test Pieces, 389*, 406 Gottingen Aerodynamic Experimental Station, 218*
Goulden, T., on the Gas Industry, 546 Governing Mechanism, 12,500 kw. Turbo-Generator, 876*
— Geared Turbo-Generator, 474*
— Hydraulic Turbines, Herlandsfossen Power Plant, 534*
Nordberg Winding Engine, 764*
Grab and Portable Crane, Ditch Clearing, 722*
Grading Machine for Steel Balls, 60*
Graham Manufacturing Co., Grinding Machine,
506*
Grain Elevators, Port of London, 864*. See 859**p * Handling Plant, Bordeaux-Bassens, 312*, 370**p * Ships, Protection against Submarines, 787* Grantham, R. F., on the Effect of Sluices and Barrages, 121, 130
Graphical Representation, Heat Treatment o Steel, 551*. See 384*p * Method, Helical Spring Design, 173**p * Solution, Thermodynamic Problems, In-ternal-Combustion Engines, 302* Graphite Lubricant, Aquadag, Sight-Feed Lubricator, 57**p * World's Output, Effect of War, 140, 165
Grate. See Fuirnace ; Stoker
Graving Dock. See Dock
Gravity Bucket Conveyors. See Conveyors*p * Effect on Light. See Relativity
Great Northern Railway, Dining Car Train, 570 Greaves, It. H., on Nickel-Aluminium-Copper Alloys, 453*. See 448
Greenwood, J. N., on Cadmium, 766
Grierson, W. W. on Reinforced Concrete on Railways, 49, 79
Grinding Machines. See Machine Tools*p * Mills, Pan, Electrically Heated, 852* Grossman, M. A., on Brittleness of Steel, 226 Ground Water, Factors Affecting Flow,
256*
Grouting, Cement, Francois Process, 24, 45, 77*p * — for Tunnel Repairs, 21, 30, 49
Guillain, A., on the Briey Iron Mines, 383
Guillet, M., on the Metallurgical Industries
of France, 383
Gun, Cement, for Tunnel Repairs, 21, 30, 49*p * Machine, Legal Point in Patent, 809*p * Metal, Effect of Lead on, 580*. Sec 448*p * Power of Warships. See Warships*p * for Stud Driving, the Temple, 475*p * See also Explosives Projectiles ; Warships ;
and PARAGRAPH INDEX
Gunboats. See Warships
" Gunga," Suction Dredger for Calcutta, 151
Gunpowder. See Explosives
Guthrie and Co., Electric Heaters for Chemicals,
852*
Gwynnes, Ltd., Centrifugal Pump, Geared
Turbine Drive, 644* • Centrifugal Pumps
for Floating Docks, 7421*
Gyratory Crusher, E. Allen Sz Co., 336*
H.
HACKNEY Borough Council, Electric Supply and Trade Union Action, 705
Hadfield, Sir R., Presentation of Fritz Medal to, 19. See 63 ; Address to Sheffield Asso-ciation of Metallurgists and Metallurgical Chemists, 607
Hague Rules, Bills of Lading, 413
Hair Hygrometers, Investigations of, 891
Hall, A. H., on the Influence of Automatic Machines on Operators, 50, 80
Hall Mark, National, for Engineering Goods, 825
Hamilton, W., and Co., M.S. " Malta," 503 Hammers. See Machine Toots
Hammondsport Trials, 'Langley's Aeroplane, 609, 828
Handbook of Metallurgy ; Copper, Lead, Silver and Gold (Review), 485
Hanson, Dr. D., on Aluminium Alloys, 519*,
594, 613, 624, 644. See 484, 509 Haranomachi Wireless Station, Vibrations of
Tower, 196*
Harbour Dues and Tonnage Measurement, 704*p * Equipment, Loading and Unloading of Ships, 21, 31, 38, 52, 81. See 859, 864*, 866*
Improvements, Schemes in Parliament, 767
Shanghai, Possibilities of Improving, 797
Sydney, Proposed Bridge, 880*
Works, Ferro-Concrete, Deterioration and Protection, 23, 40, 73*p * See also PARAGRAPH TNDEX
Hardening Metals. See Heat Treatment under
Metallurgy
Hardness Tests. See Tests (Materials)
Harmonic Analysis, Beam Problems, 656*, 686**p * — and Periodicity Measurements, Vibra-tions, 469*
Harriman Bridge, Vertical Lift, 264*
Hatton, G., on Inspecting Work and Materials, 84, 111. See LETTERS, 149, 248
Musser Process, Production of Nitric Acid, 230 Hawkins, J. C., on the Vaal River Barrage, 325* Hawksley Lecture on Power Transmission by Oil, 671
Haworth, J., on Activated Sludge, 86, 115 Hay Baling Press, Ruston and Hornsby, Ltd., 38* Health of Industrial Workers (Review), 877 Heat Emission, Thin Plates in Air Currents, 10*p * Engines. See Engines ; Turbines ; Aero-nautics*p * Insulating Materials, Conductivity and Specific Heat, 192*p * Insulation of Steam Pipes, 69 ; Cold Stores, 606*p * Losses from Cement Kilns, 193*p * Power Plants, Thermal Efficiency, Means of Improving. See Mechanical Engineers*p * Specific. See Specific Heat*p * Transmission, Marine Diesel Engines, 123, 132*p * Treatment of Metals. See Metallurgy*p * Waste, Utilisation in Works and Power Plants, 24, 45, 77, 89
Heaters, Air, for Boiler Furnaces, 57*, 92. See 65*p * Ammoniacal Liquor, Leamington Gas Works, 135**p * Electric, for Chemicals, 852**p * Feed Water. See Feed Heater*p * Oil Fuel, Wallsend-Howden, 246* Heating Boiler, Explosion of, 775*p * Curves, Alloys. See Metallurgy*p * Domestic, Comparison of Electric, Gas and Solid Fuel, 68*p * Exhaust Steam, 24, 42, 74. See Errata, 153 — and Ventilating Plant, London Sessions House, 518*
Heffernan, Sir J. H., the Late, 452. See LETTER, 486
Hele-Shaw, Dr. H. S., on Power Transmission by Oil, 671
— — Pump, Spring Buckling Press, 502* Helical Gears. See Gears*p * Springs, Chart for Designing, 173*
Hematite Prices. See Metal-Price Diagrams Herbert, A., Ltd., Railway Wheel Lathe, 280* ;
Drysdale Stud Extractor, 312* Herlandsfossen Hydro Electric Power Plant,
497*, 531*
Heroult Electric Furnace, E. Allen and Co.'s Works, 336*
Hewitt, P. C., the Late, 355
H.M. SS. See under Warships
Hichens, W. L., on Wages Determination, 445 High Frequency. See Electric*p * Speed Steel. See Steel
*— Temperature Tests. See Tests (Materials)
Highfleld, J. S., on the Training of Mechanics,
667
Highways. See Roadways
Hill, A. S., the Late, 876
Hinde, H. J., on Sheet Metal Stamping, 523*
History of the Great War, Naval Operations
(Review), 767
Hobbing Machines, Gear. See Gear under

Machine Tools

Hoisting Engines, Mine, Nordberg Manufacturing Co., 565*, 628*, 694*, 752**p * Machinery, Vertical Lift Bridges, 200*, 236*, 266*
Hoists. See also Cranes ; Transporters
Holton Heath Cordite Factory, Coal and Ash-Handling Plant, 706*
Homestake Mining Co., Winding Engine for,
565*, 628*, 694*, 752*
Horne, Prof. A. K., on Properties of Scots Pine,
387*, 405 •
Horner, J., on Recent Machine Tool Developments :
33*, 364*, 652*, 780*
Boring, Drilling and Milling Machine, Horizontal, 3-in. Spindle (Cunliffe and Croom, Ltd.), 33*
Lathe, 20-in. Centres, Heavy Motor-Driven (F. Berry and Sons), 364*
— 200 mm. Centres, Screw-Cutting, Cone-Pulley Head (Swiss Machine Tool Works), 652*
Horner, J.—continued.
Lathe, 200 mm. Centres, Screw-Cutting, All-Geared Head (Swiss Machine Tool Works), 655*
Drilling Machines, Modern Tendencies in Design, 780
— Machines, High-Speed, Details of (F. Pollard and Co., Ltd.), 783*
— and Tapping Machine, 3 ft. 6 in. Radial (G. Swift and Sons, Ltd.), 783* Horsburgh, Dr. E. M., on Fracture of Wires in Ropes, 406, 707*
Horwich Locomotive Works, Foundry Control, 832*
Hose Couplings, Fire, Standardisation of, 187*p * Coupling, Pneumatic, 215*
Hospital, London, Boiler Explosion at, 148
Hot Bodies, Emission of Electrons from, 432*p * Drawing on Mandril, Investigations of,
678*. See LETTER, 693
Hours of Labour. See Labour
House Building, Concrete Blocks for. See
Concrete*p * Refuse Disposal, London Area, 737, 889 — — Pulverising Plant for, 735, 890 Household Labour-Saving Appliances, Com
petition, 892
Howard, E. E., on Vertical Lift Bridges, 199*, 234*, 264*
Human Factor in Business (Review), 610 Hume, Dr. W. F., on Geology of Egyptian Oil Field, 608
Humidification, Air, in Textile Factories, 202* Humidifying Plant, Air, London Sessions House, 518*
Humidity, Measurement of. 890
Hutchinson, A., on Blast Furnace Gases, 66 Hyde Welding Process, 338*
Hydraucone Regainer, Hydraulic Turbines, 293* Hydraulic Crane. See Crane
Cylinders, Testing at E. Allen and Co.'s Works, 337*
Forging, Treatise on (Review), 450
Machine Tools. See Machine Tools
Operating Gear, Floating Dock Valves, 772*. See 720
Power Plant. See Power Plant
Press. See Press under Machine Tools
Pump. See Pump
Stowage in Mines, 480
Turbines. See Turbines
Hydraulics, Hydraucone Regainer for Tur
bines, 293**p * Power Transmission by Oil, 671
Rainfall and Rim-off Ground, 146, 159, 258. See Errata, 195
See also Hydrodynamics ; Irrigation; Water Hydro-Aeroplane. See Seaplane under Aeronautics
Hydrodynamics, Fluid Flow in Pipes, Boun-dary Conditions, 10**p * Pressures on Rudders, 651**p * See also Ship Resistance
Hydro-Electric Power Plant. See Power Plant
Hydrogen, Isotope of, 382. See 432
Manufacture, Claude Ammonia Process, 732
Permeability of Airship Fabric, 57*
Spectra in Long Vacuum Tubes, 434 Hydrography, Internal Movements in Sea, 499 Hydrohoist Water Lifter, 759*
Hydrology, Ground Water, Factors Affecting Flow, 256*
Hydrostatic Pressure, Stresses Produced in Ships' Plating, 368*, 405. See LETTERS,
410*, 486, 540*, 567, 612, 640, 693.
Hygiene, Health of Industrial Workers (Re-view), 877
Hygrometry, Physical Society Discussion, 890 Hypodermic Needles, Pens for Recording, Instruments, 612
Hysteresis, Elastic, Tensile Tests, 55, 81*
1.
ICE. See Refrigeration
Illumination, International Commission on, 562
National Gallery and Houses of Parliament, 213
See also Light ; Lighting ; and Lamps under Electric
Impact Tests and Allowances, Railway Bridges, 50, 80, 118, 189, 350, 881
See also Tests (Materials)
of Wheels on Roads, Solid and Pneumatic
Tyres, 119, 129*
Imperial Air Communications, 320
College, Whiffen Chemical Laboratory, 12
Manganese Steel. See Allen, E., and Co., Ltd. Imports, Machinery, Income Tax Appeal Case, 259
Trade. See Trade
Impulse Starter for Petrol Engines, 437**p * Turbines. See Turbines
Incandescent Lamps. See Lamps under
Electric
Inching Starter, Electrically-Driven Printing
Machinery, 99*
Income Tax Appeal Case, Machinery Imports,
259
Incrustation, Pipe, and Iron Bacteria, 457'11!
See 430
India, British Trade Statistics, 884
Dredger " Gunga " for Calcutta, 151
Locomotive Building in, 514
Gauge Problem, 696
Rainfall Distribution and Measurement, 257*
and Run-off Ground, 513
Rubber. See Rubber
Indian Railway Bridges, Reports on, 349 Indicator Diagrams, Air Compressors, 535*, 675**p * — Diesel Engine, Ansaldo-San Giorgio, 722* — — Diesel Engines, Air and Mechanical Injection, 134*. See 123
— — Internal-Combustion Engine, Atkinson Cycle, 70*
— — Internal-Combustion Engine, Effect of Supercharging, 71**p * — Internal-Combustion Engine, Junker's Compound, 71**p * — Nordberg Winding Engine, 754*
Indicator Engine, Optical and Piston Types, Comparisons, 94
Water Density in Boilers, 57
Water Level, for Floating Docks, 772*.
See 720
Induction Furnace. See Tv/mace, Electric
Motor. See Motor, Electric
See Electric
Industrial Accidents. See Accidents
Agreements and Disputes. See Labour ; Industrial Notes
Alcohol. See Alcohol ; Motor Fuels
Boiler Plants, Possible Economies, 29

- Chemistry. See Chemistry

- Economics. See Labour
- Fun, aces. See Eli/maces
- Mahagement. See Works Management

- Noues, 13, 58, 104, 152, 182, 216, 262, 278, 314, 354, 371, 419, 440, 476, 505, 549, 566, 602, 640, 673, 692, 724, 755, 800, 818, 862, 893. See PARAGRAPH INDEX - Poisoning, Susceptibility and Immunity, 159

Prosperity and Cost of Coal, 26
Reconstruction. See Reconstruction
Research. See Research
Respirators for Dust and Fumes, 672
Situation and Attitude of Labour, 445
Unrest. See Labour
Welfare. See Labour
Workers, Health of (Review), 877 Industries, French, Reconstruction of, 636. See 383, 418
German, Remuneration of Capital and Labour, 676
See also Trade and PARAGRAPH INDEX Industry, Co-Partnership in. See Labour
Dyestuff, Present Position, 530
Electrical, and German Reparations, 829 - Report on Research, 639
Engineering, Production of Small Machin-ery, 413
Iron and Steel, French, War Damage and Reconstruction, 383. See 418, 636
Labour Control of. See Labour
Motor Car, Standardisation in, 15, 573. See 670
Organisation of Employers and Employed,
683
Inertia Gauges, Penetration of Piles, 123, 131,
684*. See LETTERS, 756, 851
Ingall, D. H., on Properties of Rolled Zinc,
489*. See 484
Ingerslev, A., on the Strength of Slabs, 209*,
245*. See Errata, 246, 283
Ingham, W., on the Vaal River Barrage, 325*
Inglis, Prof. C. E., on Stresses in Rectangular
Plates, 623*
Ingots, Brass, Casting of, 452*. See 449
Inks, Fading of, 259
Inland Navigation. See Navigation ; Canals ;
Rivers, etc.
Inspection, Engineering, Necessity for, 543
Suggested Central Bureau, 84, 111. See
LETTERS, 149, 248
Institute of Transport. See Transport
See Institutions
Institutions, Engineering, Value of Joint Meetings, 165*p * of Production Engineers. See Production*p * of Rubber Industry, Inauguration, 575*p * Scientific, Functions of, 442*p * Technical, American, Federation of, 63*p * — Preparation of Papers, 614*p * — and Scientific. See Aeronautical Society, Royal ; Arts, Royal Society of ; Auto-mobile Engineers, Institution of ; British Association ; Ceramic Society ; Civil Engineers, Institution of ; Civil Engineers, American Society of ; Chemical Industry, Society of ; Chemical Society, American ; Electrical Engineers, Institution of ; Electrical Engineers, American Institute of ; Engineers and Spipbuilders in Scotland, Institution of ; Faraday Society ; Gas, Engineers, Institution of ; Glass Technology, Society of ; Iron and Steel Institute ; Junior Institution. of Engineers ; Manchester Association of Engineers ; Manchester Steam Users' Association ; Marine Engineers, Institute of ; Mechanical Engineers, Institution of ; Mechanical Engineers, American Society of ; Metallurgists and Metallurgical Chemists, Sheffield Association of ; Metals, Institute of ; Meteorological Society, Royal ; Mining Engineers, Institution of ; Mining and Metallurgy, Institution of ; Naval Architects, Institution of ; Naval Architects and Marine Engineers, Society of ; North East Coast Institution of Engineers and Shipbuilders ; Petroleum Technologists, Institution of ; Physical Society ; Produc-tion Engineers, Institution of ; Royal Society ; Rubber Industry, Institution of ;
Sanitary Institute, Royal ; Transport

Institute of ; Women's Engineering Society. Instruments, Engineering, Treatise on (Review), 227

Recording, Hypodermic Needles for Pens, 610*p * See also Aeronautics ; Electric
Insulation. See Heat ; Electric
Insurance, Workmen's. See Labour
Intercooler, Belliss cC Morcom Air Compressor, 535*
Interference Method, Testing Accuracy of Gauge Faces, 159
Interferometer Tubes, Quartz, Construction of, 468*
Internal-Combustion Engines. See Aeronautics ; Engines ; Motor Cars ; Tractors ; Turbines, Gas*p * Grinder. See Grinder under Machine Tools International Commission on Illumination, 562*p * Conference, High-Tension Power Trans-mission, 673*p * Construction Co., Ltd., Bench Vice, 567*p * Patent Convention, 607*p * Rules, Bills of Lading, 414*p * Trade, See Trade
Inventions. See Patents
Ionised Atmosphere, Behaviour of Pith Balls
in, 434
Iron, Acid Resisting, Thermisilid, 478*p * Alloys. See Metallurgy and Steel*p * Bacteria and Pipe Incrustation, 457*. See 430*p * Carbon Diffusion into, 279*p * Case-Hardening. See Heat Treatment under Metallurgy*p * Chromium, Properties of, 771*, 805**p * Corrosion. See Corrosion*p * Electrolytic, Effect of Heat Treatment, 88*p * Foundry. See Foundry*p * Furnaces. See Furnaces*p * Heat Treatment. See Metallurgy*p * Manufacture. See Furnaces, Blast ; Metallurgy*p * Metallic Protective Coatings, Tests, 640*p * Mines, Briey, War Damage and Recon
struction, 383
-- Ore. See Ore*p * Pig, Prices. See Metal Price-Diagrams
-- Rolling Mills. See Rolling Mills
-- and Silicon, Heat Evolution in Combina
tion, 478*p * and Steel Industry and Cost of Coal, 26 -- and Steel Industry, Trench, War Damage and Reconstruction, 383. See 418, 636
Iron and Steel Institute :
Prevention of Hardening Cracks in Tool Steel, by S. N. Brayshaw. Correspondence, 517. See LETTER, 567
Autumn Meeting, Paris
Programme, 253
Opening Proceedings, 382
Reports of Discussions, 383
Presentation of Bessemer Medal to Mr. C. Fremont, 383
The LateProf. D. Tschernoff, 384
Visits and Excursions, 418
Iron Ore Deposits of Eastern and Western France, by P. Nicou, 383
Iron Mines in the Briey Region, by A. Guillain, 383
Metallurgical Industries of Northern and Eastern France Their Destruction and Reconstruction, by M. Guillet, 383
Investigation of Hot Drawing on the Mandril, by E. Schneider, 678*. See LETTER, 603
Experimental Investigation of the Mech-anical Properties of Steel at High Temperatures, by E. L. Dupuy, 391*, 427*, See 384
Characteristic Curves of the Heat Treat-ment of Steels, by A. M. Portevin and
P. Chevenard, 551*. See 384
Constituents Found in Tungsten and

Molybdenum Steels, by A. M. Portevin, 372*

Damascene Steel, by Col. N. T. Belaiew, 395**p * — Works. See Works*p — See also PARAGRAPH INDEX*p * Tests. See Tests (Materials)*p * Welding. See Welding*p * See also Cast Iron ; Steel ; Pig Iron Metallurgy
Ironwork, Structural. See Bridges ; Floors ; Steelwork
Irrigation and Water Shortage in California, 288*p * See also PARAGRAPH INDEX
Isherwood System, Tank Steamer " San
Felix," 441*
Isotopes and Atomic Weights, 382*p * of Hydrogen, 382. See 432
Italian Passenger Steamer, "Giulio Cesare,"
Propelling Machinery, 662*
Italy, Motor Car Taxes in, 831
J.
JACK, Lifting, for Motor Cars, F.O.D., 627*
Japan, Haranomachi Wireless Station, Vibra
tions of Tower, 196*
Metric System in, 187
Japanese Government Railways, Jubilee, 311*p * Navy, Warships Built and Building, 195. See 223
Jets, Steam, Boiler Furnaces, Steam Con-sumption, 92*p * Steam. See also Nozzles
Jetties, Crane, Ferro-Cocrete, Royal Albert Dock, 6*
Johannesburg Water Supply, Vaal River Barrage, 325*
Johns, C., on Surface of Liquid Steel, 619. See 530
Johnson, B. and Son, Portable Tamping Machine, 735, 853*. See Erratum, 759
Johnson, Dr. F., on Working and Annealing. Copper, 449, 899*
Johnson's Materials of Construction (Review),. 194
Jones, F., on the Rubber Industry, 851
Journals. See Bearings
Junior Institution of Engineers, Change of Policy, 255, 733. See LETTERS, 278, 311,. 346, 372 ; Presidential Address to North. East Section, by H. I. Brackenbury, on, Waste, 514 ; Presidential Address, by C. H. Wordingham, on a National Proving: House, 825
Junker's Compound Internal-Combustion, Engine, 70*
Jupiter Aero Engine Trials, 691. See 862
K.
KANSAS City Bridge, Vertical Lift, 234* Kapp, R. 0., on Low Power Factor, 47, 79 Keillor, G., on Gas in Shipyards, 479
Kek Indicator, Boiler Water Density, 57. Kelham Beet Sugar Factory, Opening, 639 Kelway-Bamber, H., on Train Loads, 701 Kenward Collapsible Steel Barrel Co., Ltd.,
Steel Barrels, 375*
Kilns, Cement, Heat Losses from, 193
lns, Rotary, Cement Manufacture, E. Allen and Co., 337*
— Tunnel Oven, Marlow Gas-Fired, 536 ; Oil-Fired, 537
King George V Dock. See Royal Albert Kirkpatrick, C. R. S., on Dock Dimensions 21, 31, 38
Kirunavaara Mines, Air Compressor for, 675* Knight, R. E., on Pneumatic Grain Elevators, Port of London, 864*. See 859*
Kursk District, Russia, Magnetic Anomaly, 469
L.
Labour :
Blind Persons, Employment in Work
shops, 715*
Capital and Labour, Organisation of, 683*p * — Labour, Remuneration of, German Industries, 676
Capitalists' Place in Industry, 379. See Erratum, 419
Coal Strike, Principles of Settlement, 61 Co-operation of Employers and Employed, 481
Co-partnership in Gas Industry, 546 Economics of 'Welfare (Review), 290 Engineers and Labour Problems, 635 Industrial Accidents. See Accidents*p * Economics, Basing Wages on Profits, 61 — Capitalists' Place, 379. See Erratum, 419
— — Causes of Crisis, 574
— Effect of Coal Subsidy, 511. See LETTERS, 567, 728*p * — Effect of Production Costs, 576
— Effect of Short Hours, 480
— Effect of Waste, 514
— — Human Factor in Business (Review),
610*p * — Increasing Production, Employers'
Part, 156
— — National Bankruptcy, 107
— Organisation of Employers and
Employed, 683*p * — Propaganda amongWorkers, 731, 763 — — Relation between Employer and

Employed, 545

— — Remuneration of Capital and Labour
676*p Notes, 13, 58, 104, 152, 182, 216, 262,

278, 314, 354, 371, 419, 440, 476, 505, 549, 566, 602, 640, 673, 692, 724, 755, 800, 818, 862, 893. See PARAGRAPH INDEX*p * Poisoning, Susceptibility and Immunity 159*p * Situation and Attitude of Labour, 445*p * Workers, Health of (Review), 877*p * Welfare. See Welfare (below)

Industry, Labour Control of (Review), 449
Insurance, Unemployment. See Unemployment (below)
Labour Leaders and the Workers' Views, 445
Machine Tools, Automatic, Influence on Operators, 50, 80
Mexican Labour Situation, 828
Motor Car Industry, Wages, Prices and
Production, 225. See LETTER 450 Paint, White Lead in, Case against Pro
hibition, 323. See LETTER 451 Poisoning, Industrial, Susceptibility and
Immunity, 159
Propaganda, Industrial, among Workers, 731, 763
Railways, British, Higher Labour Costs, 826
Shipbuilding Yard, Yarrow's, Closing of, 286
Socialisation of Industry in Germany, 676 Strikes and Unemployment Benefit, 699 Trade Unionsts and Capitalism, 379. See Erratum, 419*p * Unions, Amalgamation of, 683*p * — Ballots, Legality of, 826
— Congress, Presidential Address on Capitalism, 379. See Erratum, 419*p * — and Control of Industry (Review), 449*p * — Lawsuits, Local Unions and National Federations, 669*p * — Leaders and Members, Relationship 731*p * — Monopolists and Electric Supply, 705*p * — Restrictions and Cost of Produc-tion, 576
Training of Skilled Mechanics, 667 Unemployment Benefit and Strikes, 699*p * Causes of, 574*p * and Cost of Production, 576*p * Relief Works, Advance Schemes, 737*p * and Road Development, 576*p * and Short Time Working, 480
Wages Boards, British Railways, Constitu
tion of, 285
-- Mining Industry, Basing on Profits, 61*p * Prices and Production, Motor Car Industry, 225. See LETTER, 450*p * Principles of Determination, 445*p * Rates, British and Foreign, 517 Welfare, Economics ( f (Review), 290*p * Work, E. Allen and Co.'s Works, 338 Wiremen, Non-Union. and the Electrical Trades Union, 705
Workers, Industrial, Health of (Review), 877
Labour-Saving Appliances, Domestic, Compe-tition, 892
Laboratory, Chemical, Intermediate Scale, Imperial College, 12*p * Tests, Gas Producer Fuels, 668*p * See also National Physical
Labyrinth Glands, Turbo-Generator, 874* Lagging Materials. See Heat Insulation. Lambert, Prof. C. .T. the Late, 673
Lamps, Electric. See Electric*p * Motor Car, Report on. 671

Lancashire Boiler. See Boiler*p * Yorkshire Railway, Norwich Works, Foundry Control, 832

Land Drainage, Excavating. Machine for, 795 — — and River Maintenance, 120, 130 Langdon, C. S., on Brittlenesss of Steel, 226 Langley's Aeroplane, Hammondsport Trials of,
609, 828
Lapworth, Dr. H., on Rainfall and Run-Off, 146, 169. See Errata, 195
Latham, E., on Gauging Penetration in Pile
Driving, 123, 131*, 684*. See LETTERS,
756, 851 ; on Deep-Water Quays, 822 Lathes. See Machine Tools
Laundry Calender, Explosion of, 583
Law. See Legal ; Labour ; Patents
Laws, Dr. B. C., on Stresses in Ships' Plating, 368*,
405. See LETTERS, 410*, 486, 540*,
567, 612,640, 693
Lawrence, M. R., on Engineering Production,
156
Le Mesurier, W. H., the Late, 248
Le Mesurier, Eng.-Lieut. Commander L. T.,
on Maag Gearing, 801*
Lea, Prof. F. C., on the 'Utilisation of Tidal
Power, 424*. See 406, 422. See LETTER,
540
Lea Recorder Co., Ltd., Coal Meter, 416
Lead, Effect on Gun-Metal, 580*. See 448*p * Metallurgy of (Review), 485*p * Prices. See Metal-Price Diagrams*p * White, in Paint, Case against Prohibition, 323. See LETTER, 451
Leamington Gas Works, Sulphate of Ammonia Plant, 135*
Leask, H. N., on Ventilation and Humidification in Textile Factories, 202*
Leclanche Cells, Regeneration of, 342 Leeds-London Dining Car Train, 570
Legal :
Arbitrator's Duties, Commercial Disputes, 352
Bills of Lading, Hague Rules, 414 Contracts, Lump Sum, Law of, 380 — Terms, Legal Effects of Variations, 62 Income Tax Appeal Case, Machinery
Imports, 259
Insurance, Workmen's. §ee Labour Labour Legislation. See Labour Machine Casting, Liability for Breakage,
259
Municipal Electricity Undertakings, Supply of Fittings, 734
Patent Law. See Patents
Railway Companies and the Carriers Act, 545
Ship Repairs, Liability for Negligence, 608 Trade Union Law. See Labour
War Compensation Court, 108
See also PARAGRAPH_ LNDEX
Legislation. See Legal ; Labour ; Patents Lerwick Geophysical Observatory, 500
Letters to the Editor, 58, 149, 220, 248*, 278, 311, 346, 372, 410*, 450, 486, 517, 540*, 567, 612, 640, 659, 692, 728, 756, 785, 819, 851, 886. See LETTERS INDEX
Level Tubes, Calibration of, 159*
Lifting Bridges. See Bridges
Jack for Motor Cars, F.O.D., 627*
Magnet, Neale Submarine, 311
Light Alloys Research, Report on, 594, 613,
624, 644
Deflection by Gravity. See Relativity
Emission of Electrons by, 432
Motor Vehicle, Report on, 671
Polarised, Stress Determination by. See
Optical
Radiation and Absorption by Atoms, 468
See also Spectrum Lighthouses, Gas Filled Lamps for, 212 Lighting, National Gallery and Houses of Parliament, 213
Gas. See Gas
See also Lamps under Electric

Lignite Briquetting in Canada, 615

Production and Use, 15, 26
Lime-Magnesia Glasses, Properties and Appli
cations, 601
Limit Gauges. See Gauges
Liners. See Steamers
Liquid Air. See Air
Fuel for Boiler Firing, Report, 321
- - Comparisons with Colloidal and Pul
verised Fuels, 90. See Erratum, 149
Corrosive, Ceratherm Pump for, 852*
Electric Resistance Heaters for, 852*
Fuel. See Oil Fuel. See also Alcohol ; Benzol ; Motor ; Petrol
Viscosity of. See Viscosity
Viscous, Flow through Conical Tubes, 711
Literature, 110, 160, 194, 227, 260, 290, 321, 352, 384, 449, 485, 514, 547, 609, 736, 767, 798, 814, 845, 877. See LITERATURE INDEX
Litigation. See Legal ; Labour ; Patents Liverpool Corporation, Supply of Electric
Fittings, 734 ; Turbo-Generator for, 873* Ljungstrom Turbo-Generator, 399*
Lloyd's Register, Report on Bunker Fires, 892 - Report of, 639
Statistics, Vessels under Construction, 108, 544
- VesselsLost, 576, 822
- World's Merchant Shipping, 157
Loading Gauge, British Railways, Increasing,
20, 30
Local Authorities. See Municipal
Lock, Entrance, Royal Albert Dock Extension,
5*
Lockouts. See Labour ; Industrial Notes
Locomotives, 0-10-0 Type, for Russia, 695*
2-10-10-2 Type, Mallet, Virginian Railroad, 745*
2-10-0 Type, Pennsylvania Railroad, 745* - Ash-Pits, New Jersey Central Railroad, 125*
Boilers, Copper Tube Plates, Repairing Cracks, 251*
- Design for Fuel Economy, 743
- - Explosion at Buxton, 759. See LETTER,
786
Cranes. See Cranes
Cylinders, Production of Castings, 834
Design and Economical Working, 743*
Electric, Advantages over Steam, 138, 164. See 50, 793, 859
Locomotives, Electric, Battery, for Shunting,
147, 170
— — Maag Gearing for, 806
— — Paulista Railway, Brazil, 854*
— — Side Thrust on Rails, 793*p * Feed-Water Heater and Pump, Weir's, 160* — — Heating and Superheating on, 89*p * Indian Railways, Construction in India, 514*p * Pacific Type, Erie Railroad, 745*
— — Type, United States Railways, Tabulated
Data, 744
Repairs, Reducing Cost, 743.
-- Road. See Motor ; Road ; Tractor*p * Shortage in Roumania., 351*p * Shunting, Early Turbine Driven, 728*. See 477*p * Steam Turbine, the Zoelly, 292**p * Use of Pulverised Fuel, 90*p * Utilisation of Waste Heat on, 89*p * Works, Horwich, Foundry Control, 832**p * See also Railways in PARAGRAPH INDEX London Area, Road Developments, 676*p * Basin, Refractory Materials of, 536*p * Brighton and South Coast Railway, Tunnel Maintenance, 30. See 21, 40 ; Reconstruction of Ebury-street Bridge, 163* ; Pullman Cars, 217*p * Electric Firm, Flexible Shaft Coupling, 375* — — Supply, Unification, 857*p * Houso Refuse Disposal, 737, 889*p * Leeds Dining Car Train, 570*p * North Circular Road, 191*p * and North-Western Railway, Locomotive Boiler Explosion, 759. See LETTER, 786*p * Port of, Shipping Statistics, 381 ; Pneumatic Grain Elevators, 864*. See 859* — Royal Albert Dock Extension, 2*, 109*p * Sessions House, Heating and Ventilating Plant, 518**p * Suspended Impurities in Atmosphere, 565*.
See 12, 531, 554*, 737
Longitudinal Bulkheads. See' Watertight Sub
divisions
Lord, C. B., on Interchangeable Manufacture
553
Lorries. See Motor Lorries : Tractors
Low Temperature Carbonisation of Coal, 29, 68
175*, 596*. See Erratum, 110
Lowry, Dr. T. M., on Optical Rotatory Dis
persion, 33
Lubricating Oils, Effect of Fatty Acids, 10
— See also Oils
Lubrication of Gearing, 802*p * System; High-Speed Ammonia Compressor, 608*
Lubricator, Sight-Feed, for Aquadag, 57* Lump Sum Contracts, Law of, 380
Lumsden System, Lathe-Type Tools, 183*, 213* Lupton, H., Comparisons of Pumping Engines
and Turbo-Driven Pumps, 23, 42, 74.
See LETTER, 279. See also 430, 644*
M•
MAAG Gearing, Production and Applications, 801*
Macadam. See Roads and Tar Macadam Macalpine, J. H., on Reduction Gears, 179. See LETTERS, 311, 659
Macaulay, F. W., on Pipes for Pressure Con
duits, 145, 168 •
Mac. See also Mc
Machine Casting, Liability for Breakage, 259*p * Gun Patent, Legal Point, 809*p * Shops. See Works and Machine Tools
—• Testing. See Testing Machines and Tests
(Materials)

Machine Tools :

Automatics, Influence on Operators, 50, 80
Automatic Turret Lathe, 10-in. Centres, for Chucking Work (Gisholt Machine Co.), 463*
Boring, Drilling and Milling Machine, Horizontal, 3-in. Spindle (Cunliffe Croota, Ltd), 33*
— and Turning Mill for Motor-Car Tyre Moulds (Niles-Bement-Pond Co.), 888*
Cable Reel, for Portable Electric TooLs (Wayne Engineering and Equipment Co.), 550*
Crank-pin Turning Machine (Gardner and Co., Ltd.), 812*
Die Sinking Machine (B. Symons and Co.), 341*
Drilling Machines, High-Speed, Details of (F. * Pollard and Co., Ltd.), 783*
— — Modern Tendencies in Design, 780
— — Operation by Blind, 716*
— Milling and Boring Machine, Horizontal,
3-in. Spindle. (Cunliffe and Croom, Ltd.), 33*
— and Tapping Machine, 3 ft. 6 in. Radial,

(G. * Swift and Sons, Ltd.), 783* Drop-Forging Dies, Machine for Cutting (B. Symons and Co.), 341*

Emery Wheel Grinding Machines. See Grinding Machines (below)
Flanging Press, Hydraulic (Rice and Co. (Leeds), Ltd.), 72*
Gear Cutting and Grinding Machines (Maag Gear Co.), 802*
— Shaping Machine, Multiple (Stevenson Gear Co.), 539**p * Worm, for Telescope Drive, Method of Cutting, 244*
Grinding Gear Teeth, Machine for (Maag Gear Co.), 802*
— — Teeth, Motor Car Gear-Boxes, 871*. See 897*p * Holes, Motor Car Gear Wheels, Method of Mounting, 831**p * Lathe-Type Tools, Lumsden System, 183*, 213**p * Machine, 30 in. by 16 ft., Crankshaft
Work (C. Churchill and Co., Ltd.), 812#
— — Surface, (Graham Manufacturing Co.), 506*
— — Universal Tool and Cutter (Tangent Tools), 415*
Machine Tools—continued.
Hammers, Forging, Comparisons with Hydraulic Presses, 700. See LETTERS,
728, 756, 786, 851*p * Steam, Explosion of Stop Valve, 537. See Erratum, 570
Lathe, 10-in. Automatic Turret, Chucking Work (Gisholt Machine Co.), 463**p * Crankpin Turning (Gardner Lt., Co., Ltd.), 812**p * 20-in. Centres, Heavy Motor-Driven (F. Berry Sc Sons), 364**p * 48-in. Railway Wheel (Noble and Lund, Ltd. and A. Herbert, Ltd.), 280**p * Screw Cutting, Precision (B. Symons and Co.), 216
200-mm. Centres, Screw-Cutting, All-Geared Head (Swiss Machine Tool Works), 655**p * 200-mm. Centres, Screw-Cutting, Cone Pulley Head (Swiss Machine Tool Works), 652**p * Tool ; Ring-type, Top Rake and Clear-ance, 95* ; curved top rake type, 213**p * Turret, 2i-in. Hollow Spindle, Details of Construction (Pollock and McNab (1919), Ltd.), 758**p * Type Tools, Lumsden System, 183*, 213**p * See also Automatic (above)
Machine Shops, E. Allen and Co.'s Works,
337**p * — Clarke's Crank and Forge Co., Ltd.,

• * 778* 811**p * — Management. See JJ'orks Manage-ment*p * Tools, Recent Developments. See Horner, J.*p * Work, Employment of Blind Soldiers, 715*

— Influence of Automatics on Opera-tors, 50, 80*p * — Interchangeable Manufacture, Fun-damentals of, 553*p * — Tool Making and Interchangeable Manufacture (Review), 547
Milling, Boring and Drilling Machine, Horizontal, 3-in. Spindle (Cuuliffe Croom, Ltd.), 33*
Planing Machine, Gear. See Gear (above)
— German Investigations, 886
Presses, Hydraulic Forging, Comparisons with Power Hammers, 700. See LETTERS, 728, 756, 786, 851*p * — Forging, Crankshaft Manufacture (Davy Brothers, Ltd.), 777**p * — Forging, Mechanical Manipulator

for (Alliance Machine Co.), 151**p * — Plate Flanging (Rice and Co. (Leeds), Ltd.), 72**p * — for Spring Buckling, Hele-Shaw • * System (S. Denison Son, Ltd.), 502**p * Power, Liability for Breakage, 259*p * — Operation by Blind, 717**p * Stamping, Motor Car Industry, 523*

Puncher- 'Type "SlottingMachine, Crankshaft Manufacture (W. Muir and Co., Ltd.), 811*
Punching Machine, Hand-Operated Hydraulic (Tangent Tools), 415*
Ring Turning Tool, Top Rake and Clearance, 95*
Saws, Band, Swaging and Side Dressing Machine (A. Ransome and Co Ltd.), 186**p * Manufacture, E. Allen and Co.'s Works, 306*
Screw Cutting, Accuracy in (B. Symons and Co.), 216
Shaping Machine, Gear (Stevenson Gear Co.), 539*
Slotting Machine, Puncher Type, Crankshaft Manufacture (W. Muir and Co., Ltd.), 811*
Stamping, Sheet Metal, Motor Car Indus-try, 523*
Stud Driver and Extractor, the Drysdale (A. Herbert, Ltd.), 312*
Swaging Machine for Band Saws (A. Ransome and Co., Ltd.), 186*
Tapping and Drilling Machine, 3-ft. 6-in.
Radial (G. Swift and Sons, Ltd.), 783* Tools, Lathe Type, Lumsden System, 183*,
213**p * Making and Interchangeable Manufacture (Review), 547*p * Turning, Ring, Top Rake and Clear-ance, 95*
Turning and Boring Mills. See Boring (above)*p * Machines, Automatic. See Automatic (above)
— — for Crankpins (Gardner and Co., Ltd.), 812**p * Tool, Ring, Top Rake and Clearance,
95* ; curved top rake type, 213*
Turret Lathes. See Lathes (above)
Vice, Bench, Quick-Acting (International
Construction Co.! Ltd.), 567
See also PARAGRAPH INDEX
Machine Vice. See Vice under Machine Tools*p * Work. See Machine Tools
Machinery Exhibition at Olympia, 374*, 414*,
435*, 470*. See 417, 481, 543*p * Hall Mark for, 825
Imports, Income Tax. Appeal Case, 259*p * Small, Design and Production, 413
Magnesium Alloys. See Alloys under Metallurgy
Magnesite, World's Output, Effect of War, 140, 165
Magnet, Lifting, Neale Submarine, 311 Magnetic Anomaly, Kursk District, Russia, 469*p * Storms and Solar Phenomena, 500
Magnetos, Starting Device for Petrol Engines, 437*
Mains, Electric. See Cables under Electric Maintenance of Railway Tunnels, 21, 30, 49 ; Railway Structures, 635, 646
Malaria, Occurrence in Scotland, 442
Malaya, British, Engineering Works in, 823
" Malaya" M.S., for East Asiatic Co., Ltd., 195 " Malia," M.S., Cammellaird-Tullagar Engines, 503
Mallet Locomotive for Virginian Railroad, 745* Mallinson, C. E., on Season Cracking of Brass, 262*, 297*, 327*
Malsters' Plant, Brewers' Exhibition, 638 Management, Industrial, Labour's Share in. See Labour
— of Works. See Works Management
Manchester Association of Engineers, Presidential Address by F. J. West, 545 ; H. F. Massey, on the Flow of Metal during Forging, 700. See LETTERS, 728, 756, 786, 851 ; Sir D. Clerk on Water Power, 828 ; D. Adamson, on Foundry Costs and Establishment Charges, 894**p * Atmospheric Pollution in, 554*. See 531, 555*, 737
Steam Users' Association, Report on Oil Fuel, 321
Manganese Dioxide Electrodes, Dry Cells, Regeneration, 342
Ore, World's Output, Effect of War, 140, 165
Silicon, Production in Electrical Furnaces, 252
Steel. See Allen, E., and Co., Ltd.
Manipulator, Mechanical, for Heavy Forgings, 151*
Mannesmann Piercing Machine, Tube Manu-facture, 397*, 429*, 495*, 527*. See LETTERS 612, 660
Manoeuvring Valves, Marine Turbines, 473* Manufactures, British, Floating Exhibition of, 446. See 377, 728, 819
Increasing Production, Employers' Part, 156
Interchangeable, Fundamentals of, 553 — — and Tool Making (Review), 547
Scientific Methods in. See Works Manage-ment.
See also Trade
Manufacturers, British and Overseas Trade, 540*p * Need for Organisation, 683
Mapping from Aeroplane Photographs, 557**p * Hints to Travellers (Review), 815
Marine Auxiliary Machinery, S.S. " Paris,"
248* ; SS. " Giulio Cesare," 664*
Boilers. See Boilers
Engineering, Research and Progress in, 574 — Scholarships in, 15
— Engineers, Institute of, J. H. Anderson on British and American Mining Methods, 608 ; H. J. Young on Grey Iron Castings, 892
and Naval Architects, American Society of. See Naval Architects
Engines. See Engines ; Turbines ; Marine Propulsion
Propulsion, Comparisons of Systems, 358 — — Cost of High Speed, 838
Diesel-Electric System, 765. See 357* — — Diesel Engines, Auxiliary Compressors for, 435*
Diesel Engines, Cammellaird-Fullagar, M.S. " Malia, ' 503
Diesel Engines, Data of Motor Ships, 168. See 143
Diesel Engine, Doxford Opposed Piston Type, Crankshaft for, 723*
Diesel Engines, Heat Transmission in, 123, 132
Diesel Engines with Large Cylinders, 12R 132*
Diesel Engines, M.S. " Malaya," 195
Diesel Engines, Recent Progress, 143, 168
Diesel Engine Trials, M.S. " Scottish Standard," 133. See 123
Engines and Boilers, S.S. " P.L.M. 20," 339*
Effect of Waves, Model Experiments, 99
Electric System, British Patent, 220
Electric System, Motor Arrangements, 765
Electric System, SS. " San Benito," 481 — — Electric System, Turbines and Diesel Engines, 357* See 765
— Electric System, U.S. Battleship " Maryland," 191; U.S. Battleship " Tennessee," 359*
Geared Turbines, Advantages of Floating Frame,-179. See 143. See LETTERS, 311, 659
Geared Turbines, Deflections of Casings, 179. See 311, 659
Geared Turbines, Development of, 142, 167
Geared Turbines, Double Reduction, Balancing of, 372
Geared Turbines, Double Reduction, Tank Steamer " San Felix,"
Geared Turbines, Effect of Torsional Vibrations, 180. See 167, 311.
Geared Turbines, Maag Reduction Gears, 804*p * —Geared Turbine Machinery, SS. " Giulio Cesare," 662
— — Geared Turbines, Tooth Pressures, 157 180, See 142, 311, 659
— — Geared Turbines, Torsional Vibration of Shafting, 363* See LETTERS 661*p * Geared Turbines,. Wear of Teeth, 142.
See 167
— —H.M. Navy, Early History, 486. See 452*p * — Machinery Spaces and Tonnage Measurements, 704*p * — Manceuvring Valves for Turbines, 473**p * — Oil Fuel for. See Oil Fuel
— — Powering of Ships (Review), 161
— Propellers, Cavitation Phenomena, 85*
114
— — Propellers, Detail Design (Review), 322
— Propeller Shafts, Torsional Vibration, 363* See LETTER, 661*p * — Turbine Blading Failures in U.S. Destroyers, 615*, 647* See 636
— See also Engines ; Turbines ; Pro-pellers ; Ship Resistance ; and PARAGRAPH INDEX*p * Salvage. See Salvage*p * Structures, Ferro-Concrete, Deterioration and Protection, 23, 40, 73*p * Turbines. See Turbines. Steam ; Marine Propulsion*p * Risks, Analysis of, 668
Markets. See Trade and PARAGRAPH INDEX Marlow Gas-Fired Tunnel Oven, 536 Marshall, Sons (V, Co., Ltd., Flax Pulling
Machine, 795
Marvin, W. L., on Competition of American and Foreign Vessels, 794
" Maryland," U.S. Battleship, Electrically-Propelled, 191
Massey, H. F., on Flow of Metal during Forg
ing, 700. See LETTERS, 728, 756, 786, 851 Materials for Aircraft and Aircraft Engines,
Report on (Review), 485*p * of Construction, Johnson's Treatise on (Review), 194*p * Inspection of, Suggested Central Bureau, 84, 111. See LETTERS, 149, 248.*p * Strength of. See Stress and Tests (Materials)
Mathematics, Exponential Analysis, Balancing of Reciprocating Masses, 778**p * Harmonic Analysis, Beam Problems, 656*, 686*
Mather Sc Platt, Ltd., Centrifugal and Turbine Pumps, 644*
Matter, Structure of Atoms and Molecules, 529 Maybury, Sir H. P., on Road Development, 576 Mayo, Major R. H., on the Paris Aero Exhibition, 795, 862
McAlpine, Sir R., and Sons, Reconstruction of :bury Street Bridge, 163*
McKechnie, Sir J., on Internal Combustion Engines, 123, 132*
Mc. See also Mac
Measuring Bars, Standard, Discrepancies in,158*p * Gear Teeth, Dial Gauge for, 103*, 803**p * Instruments, Treatise on (Review), 227*p * Machine, End, at N.P.L., 158**p * — Internal Diameters of Screw Gauges, 558**p * Pumps for Paint and Oil, 632* Measurements, Metric System in Japan, 187 Mechanical Engineers, American Society of :
W. M. White on the Hydraucone Re-gainer for Hydraulic Turbines, 293* ; Proposed Research, Properties of Steam 320 ; W. E. Thau on Electric Ship Propulsion, 357* ; H. J. Hind() on Sheet Metal Stamping in Motor Car Industry, 523* ; C. B. Lord on Inter-Changeable Manufacture, 553 ; J. Partington on Waste in Locomotive Operation, 743* ; W. C. Sanders on Container Cars for Railways, 820*
Mechanical Engineers, Institution of :
National Certificates and Diplomas, Engineering Students, 12
Summer Meeting, London:
Preliminary Notice, 24
Value of Joint Meetings of Technical Societies, 155
Exhibition of Boiler-House Accessories,56* Reception of American Engineers, 63 Internal-Combustion Engine Theory with
Relation to Higher Economy, by
H. E. Wimperis, 63. See LETTER, 220 High Steam Pressures and other Means of
Increasing Economy of Steam Engines
by F. Samuelson, 64*
Chemistry of Combustion, by E. V. Evans, 65
Blast Furnace Gases,. by A. Hutchinson and F. Bainbridge, 66
Boiler-House Management (General Causes of Boiler Inefficiency), by D. Wilson, 67. See LETTER, 149
Low-Temperature Carbonisation of Coal, by Dr. W. A. Bone, 68. See Erratum, 110
Engine-House Management and Steam
Engine Inefficiency, by H. Dunell, 68 Super-Compression and other Means for
Improving the Economy of Internal
Combustion Engines, by A. E. L.
Chorlton, 69*. See Erratum, 109 Waste Heat Utilisation, by R. Nelson, 89 Superheating, by Sir H. Fowler, 89
Liquid, Colloidal and Powdered Fuels, by
Dr. Ormandy, 90. See Erratum, 149 Fuel Oils for Internal-Combustion Engines,
by H. Moore, 91
Automatic Stokers, by A. W. Bennis, 91 Air Heaters, by W. H. Patchell, 92. See 57* Feed Heaters and Economiser:, by C. E.
Stromeyer, 94
The Indicator as an Aid to Economy, by Prof. W. E. Dalby, 94
Winter Session Meetings:
Alloys Research Committee, Eleventh Report, 594, 613, 624, 644
Hawksley Lecture, by Dr. H. S. Hele-Shaw, on Power Transmission by Oil, 671
Claude Synthetic Ammonia Process, by J. H. West, 732
Machinery of Floating Docks, by Dr. E. H. Salmon, 720, 739*, 772*
The Late Mr. E. Windsor Richards, 720. See 701*
The Late Sir C. Douglas Fox, 720. See 703*
Royal Charter, Council's Decision, 859 Proposed Alterations to Articles, 859 Annual Dinner, 861
Discharge of Grain Cargoes in the Port of London by Pneumatic Elevators, by
R. E. Knight, 864*. See 859*
Conveying and Elevating Machinery, by G. Mitchell, 866*. See 859
Mechanical Flight. See Aeronautics*p * Stoker. See Stoker*p * Traction on Roads. See Roads ; Motor Cars ; Tractors
Memphis, Centrifugal Drainage Pumps at, 643* Merchant Shipbuilding. See Shipbuilding*p * Ships. See Ships ' • Steamers
Mercury Prices. See Metal-Price Diagrams*p * Purification of, 711*p * Salts and Season Cracking of Brass, 263*, 297, 327**p * Vapour Rectifiers for Alternating Currents,
403. See 588
— Time Interval in Fluorescence, 433*
Mercury Vapour, Turbine and Steam Turbine, Combined, 64*
Metals, Anti-friction. See Alloys under Metallurgy*p * Contact Potentials, Theory of, 432*p * Corrosion of. See Corrosion*p * Electrolytic Etching for Micro-Examina-tion. 484. See 490*p * Fatigue of. See Alternating Stress under Tests (Materials)*p * Flow during Forging, 700. See LETTERS. 728, 756, 786, 851*p * Filament Lamps. See Lamps under Electric
Metals, Institute of :
Season Cracking of Brass and other Copper
Alloys, by H. Moore, S. Beckinsale
and C. E. Mallinson, 262*, 297*, 327* Hints on Preparation of Papers, 514.
Autumn Meeting, Birmingham:
Programme, 148
Opening Remarks, 448
Reports of Discussions, 448, 483
Properties of Some Nickel-Aluminium-Copper Alloys, by Prof. A. A. Read and R. H. Greaves, 453*. See 448
Effect of Increasing Proportions of Lead upon the Properties of Admiralty Gun Metal, by R. T. Rolfe, 580*, See 448
Casting of Brass Ingots, by R. Genders, 452*. See 449
Density of the Copper-Zinc Alloys, by T. G. Bamford, 585*. See 449. Experiments in the Working and Annealing of Copper, by Dr. F. Johnson, 449. 899*
Effect of Progressive Cold-Drawing on the Physical Properties of Low-Tin Bronze, by W. E. Alkins and W. Cartwright, 449
Extrusion Defect, by R. Genders, 487*. See 483
Use of the Scleroscope on Light Specimens of Metals, by F. S. Tritton, 492*, See 483
Relation between Mechanical Properties and Microstructure in Pure Rolled Zinc, by D. H. Ingall, 489*. See 484
Constitution and Age-Hardening of Alloys of Aluminium with Magnesium and Silicon, by Dr. D. Hanson and Miss M. L. V. Gayler, 519*. See 484, 509
Electrolytic Etching of Metals, by F. Adcock, 484
Magnesium Alloy • Electron, by S. Beckinsale, 641.
Metals, Metallography of (Review), 229*p * Microstructure and Physical Properties (Review), 878*p * Non-Ferrous, Metallurgy of (Review), 485*p * Powders, Ltd., Flexala Pump, 643**p * Price Diagrams. 88*, 230*, 355*, 516*, 641,* 769* 896**p * Surface Tension Effects, 878. See 530*p * Solidification of, Surface Tension Effects, 530*p * Structure of. See Metallography ; Microphotographs*p * Welding. See Welding*p * See also Metallography ; Metallurgy ; Microphotographs
Metallic Coatings, Protection of Iron, 1.42, 167, 640*p * Films, Properties of, 878
Metallography, Electrolytic Etching Process,
484. See 490*p * Etching Agent for Special Steels, 570*p * Metals and Alloys (Review), 229*p * Polishing and Etching Zinc, 490*. See 484*p * Solidification of Metals, Surface Tension Effects, 530*p * Strain Figures in Etched Steel, 809**p * Tungsten and Molybdenum Steels, Effect of Annealing on Structure, 372**p * Zinc, Rolled, Mechanical Properties and Microitructure, 489*. See 484*p * See also Metals ; Metallurgy ; Micro-photographs
Metallurgists and Metallurgical Chemists, Sheffield Association of, Address by Sir R. Hadfield, 607
Metallurgy :
Alloys, Aluminium-Copper-Zinc N. P. L. Investigations, 192
— — Magnesium and Silicon, Constitution and Age Hardening, 519*. See 484, 509
— — Report on Research, 594, 613, 624, 644*p * Bearing Metals, Testing by Detonators, 394*p * Copper-Zinc, Density of, 585*. See 449*p * — Season Cracking of, 262*, 297*, 327**p * — See also Brass ; Bronze ;Oun Metal*p * Magnesium, Electron, Properties of,
641
— — Silicon, N. P. L. Investigations, 192*p * Metallography of (Review), 229*p * Nickel-Aluminium-Copper, Properties of, 453*. See 448*p * Zinc, Strengthening by Compression,
711
Blast Furnaces. See Furnaces
Brass. See Brass
Bronze. See Bronze
Cadmium, Properties of, 766
Cast Iron. See Cast Iron
Coke Ovens. See Coke Ovens
Corrosion of Metals. See Corrosion
Forging, Comparisons of Hammers and
Presses, 700. See LETTERS, 728, 756,
786, 851*p * Heavy, Manipulating Machine for, 151**p * Hydraulic, Treatise on (Review), 450*p * Processes, Crankshaft Manufacture, 778*, 811*
Foundry. See Foundry ; Moulding
Furnaces, Metallurgical. See Furnaces
Metallurgy—continued.
Heat Treatment, Aluminium Alloys, 521*, 613, See 484, 509, 505, 625, 644
Annealing Tungsten and Molybdenum Steels, Effects, 350, 372*
Annealing Castings, Horwich Works, 836
Annealing of Copper, 449, 899* 1
Case Hardening of Steel (Review), 292
— Cementation, Diffusion of Carbon into Iron, 279*p * — Chromium Steels, 594*, 771*, 805* ---- Electrolytic Iron, Effect on Hardness, 88
Nickel-Aluminium-Copper Alloys, Effect of, 453*. See 448
Nickel-Chromium Steel Turbine Blades, Effects, 649
Plant, E. Allen and Co., 306*
Steels, Characteristic Curves, 551*.
See 384 era*p * — Tool Steel, Prevention of Hardening
Cracks, 517. See LETTFR, 567
Iron, Acid-Resisting, Thermisilid, 478*p * Carbon Diffusion into, 279
Electrolytic, Effect of Heat Treatment, 88
Ore. See Ore
and Silicon, Heat Evolution in Com-bination, 478*p * and Steel Manufacture, Utilisation of Waste Heat, 89
Metallurgical Department, N. P. L., Work of, 192*p * Industries, Effect of War, 139, 165 — Use of Water Power, 24, 44, 76 Metallurgy Handbook, Copper, Lead, Silver and Gold (Review), 485
Metals, Solidification Pot Surface Tension Effects, 530*p * Tests of. See Tests (Materials) Pyrometers. See Pyrometers
Refractories. See Refractory Materials ; Firebricks
Rolling Mills. See Rolling Mills
Season Cracking of Brass, andc., 262*, 297*, 327*
Silicon and Iron, Heat Evolution in Combination, 478*p * Manganese, Production in Electric Furnaces, 252
Slag, Blast Furnace, Sulphur Recovery, 221*p * Cement, Manufacture in Electric Furnace, 103*p * Use in Concrete, 851

Steel Furnaces. See Furnaces*p * Liquid, Vapour from, 619. See 530*p * Tubes and Cylinders, Hot Drawing on Mandril, 678*. See LETTER, 693*p * Cerium and Molybdenum, United States Research, 892*p * Manufacture. See Allen E., and Co., Ltd.*p * Stainless, High Temperature Tests and Effect of Heat Treatment, 594**p * — Turbine Blades and Pump Rams, 592**p * Uranium, Properties of, 841*p * Tungsten and Molybdenum, Effect of Annealing on Structure, 372*

Uranium, Properties and Uses, 841 Welding. See Welding
Zinc, Rolled, Properties and Microstructure, 489*. See 484*p * Strengthening by Compression, 711
See also Iron and Steel Institute ; Metals, Institute of ; Metallography ; Micro-photographs ; Foundry ; and PARA.-GRAPH INDEX
Metallurgy and Mining, Institution of. See Mining
Meteorological Society, Royal :
Functions of a Scientific Society, with Special Reference to Meteorology, by R. H. Hooker, 442
Meteorology in Medicine, with Special Reference to the Occurrence of Malaria in Scotland, by A. M. Mac-donald, 442
Diurnal Variation of Atmospheric Pressure at Castle O'er and Eskdalemuir Observatory, Dumfriesshire, by Dr. A. C. Mitchell, 442
Natural Tendency towards Symmetry of Motion and its Applications as a Principle in Meteorology, by Dr. S. Fujiwhara, 442
Dynamics of Wind, by Dr. H. Jeffreys, 693 Behaviour of Pilot Balloons at Great
Heights, by N. K. Johnson, 693 Cloud Phenomenon of November 29, 1920,
by C. J. P. Cave, 693
Meteorology, Cloud with Sharp-Cut Edge, 693*p * Drought of 1921, 500*p * Dynamics of Wind, 693*p * Hints to Travellers (Review), 815*p * Introductory Treatise (Review), 260*p * Measurement of Atmospheric Moisture, 890*p * in Medicine, 442*p * Rainfall Distribution and Measurement, 256**p * Symmetry of Motion in, 442*p * Theory of Cyclones and Anti-Cyclones, 500 Meter, Coal, Lea, for Chain-Grate Stokers, 416 Meters, Engineering, Treatise on (Review), 227*p * Gas, Life of, Report, 342, 563*p * See also Electric
Metric System in Japan, 187
Metrology, Work of N.P.L., 158*
Metropolitan Vickers Electrical Co., Ltd.,
Cargo Winch, 435* ; Geared Turbo
Generator, 474* ; 12,500-kw. Turbo -
Generator, 873**p * See also London
Mexican Oil Production, 828.
Mexico, Mineral Resources and Public Works,
828
Michell Thrust Bearing, Turbo-Generator, 874*
Microchronograph, Edinburgh Observatory,
500 *
Micrometer, Ultra-Sensitive, Thertnionic Valve Typo, 395* See 469
Microphotographs, Aluminium Alloys, Effect of Heat Treatment, 522**p * Bacteria Producing Pipe Incrustation, 457**p * Brass, Season Cracks. 297*, 298**p * — Tube, Non-Metallic Inclusion, 452**p * Chromium Steel, 806**p * Copper, Effect of Annealing, 900**p * Damascene Steel Blade, 395**p * Gun-Metal, Effect of Lead, 582**p * Nickel-Aluminium-Copper Alloys, 455**p * Steel, Properties at High Temperatures, 392*, 393*, 394*, 427*
— Stainless and Nickel, 593*
— — Tungsten and Molybdenum, Effect of
Annealing on Structure, 373**p * — Turbine Blades, U.S. Destroyers, 650**p * — Strain Figures, 810*
— — Welded with Copper, Hyde Process, 338**p * Zinc, Cast and Rolled, 491*
Microstructure and Physical Properties of
Solids (Review), 878*p * Rolled Zinc, and Mechanical Properties, 489*. See 484*p * of Metals. See also Metallography ; Microphotographs
Middlesbrough, New Technical Institute, 480 Midland Railway, Dining Cars, 105 ; Battery Locomotives, 147, 170
Midlands, Electric Power Supply, 191, 226 Mid-Scotland Canal, Notes on, 407, 462 Milling Machines. See Machine Tools
Mills, Grinding, Electrically Heated, 852* — Rolling. See Rolling Mills
Millwall Docks, Pneumatic Grain Elevator, 864*, See 859
Milton, Dr. J. T., Report on Bunker Fires, 892 Mineral Industry, Water Power in, 24, 44, 76*p * Oils. See Oils*p * Resources of Algeria, 823 ; of Yugo-Slavia, 823 ; of Mexico, 828*p * Supplies, Effect of War, 139, 165*p * See also Coal ; Mining ; Ores ; and PARAGRAPH INDEX
Miners' Strike, Principles of Settlement, 61 — British and Foreign, Comparisons, 517 Mines, Coal. See Collieries*p * Gold, New Moddorfontein, Air Compressor for, 535*. See LETTERS, 661*p * Hydraulic Stowage in, 480*p * Iron, Briey, War Damage and Recon
struction, 383
— — Eastern and Western France, 383.
See 418
— — Kirunavaara, Air Compressor for, 675**p * Props, Scottish Timbers for, 405*p * Rand, Water Supply, Vaal River Barrage, 325**p * Rescue Apparatus. See Colliery*p * San Domingos, Air Lift Pump, 460*. See 430, 693*p * Ventilating Fan, Regainer for, 659* — Winding. See Winding*p * United States Bureau of. See United States*p * See also Coal ; Collieries ; Mining ; Ores ; Winding and PARAGRAPH INDEX
Mining Apparatus, Electrical, Relief Bolts fen., 376*p * Engineers, Institution of, Presidential Address by Sir J. Cadman, on the Mining Industry, 418 ; War Memorial, 766*p * Coal, British and American Methods, 608*p * Industry, Basing Wages on Profits, 61
— and Metallurgy, Institution of, War Memo
rial, 766*p * Use of Cement Grouting in, 24, 45, 77*p * Water Power in, 24, 44, 76*p * Work in the War, 766*p * See also PARAGRAPH INDEX
Ministry of Transport. See Transport
Mirrors and Mountings, 72-in. Telescope, 240*, 269*. See 208*
Mitchell, G., on Conveying and Elevating
Machinery, 866*. See 859 Mixed-Pressure Turbines. See Turbines Mixing Machine, Concrete, Ransome Portable,
735*
— — Concrete, Road Construction, 734* — — Tar Macadam, 735
Modderfontein Mine, Air Compressor for, 535*. See LETTERS, 661
Models, Investigation of River Estuaries by, 121, 130*p * for Stress Determination. See Optical*p * See also Aeronautics ; Ship Models ; Ship.
Resistance
Moisture, Atmospheric, Measurement of, 890*p * Effect, on Strength of Timber, 387*. See
504
Molecules, Gaseous, Structure of, 827*p * Structure of, B.A. Discussion on, 529 Molybdenum Steel, Effect of Annealing on Structure, 372*
— Properties of, 350
— — United States Research, 892 Monoplane. See Aeronautics
Mont Cents Tunnel, Jubilee, 447
Montreal Harbour, Floating Crane for, 784* Moore, H., on Fuel Oils for Internal-Combus
tion Engines, 91 ; on Season Cracking of
Brass, 262*, 297*, 327*
Morley, Dr. T. B., on a Nomographic Chart for Gases, 302*
Mossay and Co., Ltd., Electric Run-About Crane, 564*
Motor Cars, American, Prices of, 225. See LETTER, 450
Motor-Car Details :—
Back Axle, Clarkson Steam Lorry, 630* Gear Box, Clarkson Steam Lorry, 630* — Boxes, Design and Construction of, 830*, 870*, 897*
Engines, See Engines, Petrol.
Motor-Car Engineers. See Automobile Engineers*p * — Engines. See Engines, Petrol
— — Exhaust in Tunnels, Investigations, 872
— — Exhibition, Olympia, 670*p * — Fuels. See Motor Fuels*p * — Gear Boxes. See Motor-Car Details*p * — Headlights, Report on, 671*p * Industry, Sheet Metal Stamping, 523*
Motor-Car Industry, Standardisation in, 15,
573. See 670
Industry, Use of Aluminium Alloys, 625*p * Industry, Use of Chromium Steels, 771*, 805*
— — Industry, Wages, Prices and Production, 225. See LETTER, 450.*p * Lifting Jack for, F.O.D., 627* — Modern Practice (Review), 547
-- Pallas Petrol Gauge for, 693**p * — Taxes in Italy, 831
— See also Motor Cycles and PARAGRAPH INDEX*p * Cycle Exhibition, Olympia, 764*p * Electric, Arrangement for Ship Propulsion, 765
— Drum-Type, Starting Panel for, 726*
— Inching Starter for, 99*
— Induction, U.S. Battleship " Ten
nessee," 359*
— Starting and Regulating Switches,
Magnetic Blow-Out, 99**p * Starting Switches, Construction of Resistance Units, 09*
— Starting Switches, Push Button for, 101* Traction, Maag Gearing for, 805*
— Vertical Shaft, for Centrifugal Pump,742* - Fuels, Advantages of Benzole, 737
— Advantages of Coke, 579. See 275*, 575,
630*
Alcohol, Sources of, 27*p * — Calorific Value and Cost, 579
— Use of Producer Gas, 575, 580
— Internal-Combustion. See Aeronautics ;
Engines ; Motor Cars ; Tractors*p * Lorries, Coke as Fuel, 579. See 275*, 575,630*
-- Derby Agricultural Show, 37
— Gas Producers for, 575, 580
-- Olympia Exhibition, 576
— Steam and Electric, Municipal Work, 736*p * Lorry, Steam, Clarkson Coke-Fired, 275*, 630*. See 575, 579*p * Manufacturers and Traders, Society of, Tractor Trials, 446, 481 ; Olympia Motor Show, 670 ; Annual Dinner, 671*p * Marine. See Engines*p * Omnibus Schemes in Parliament, 766*p * Omnibuses, Trackless Trolley System, York,
354
Paraffin. See Engines, Oil*p * Petrol. See Aeronautics ; Engines, Petrol ;
Motor Cars ; Tractors
Plough. See Tractor*p * Road Roller, Ruston and Hornsby, Ltd., 759 ; Barford and Perkins, Ltd., 884**p * Ships, Auxiliary Machinery for, 374*, 435* " Cargo Shipper," Converted Sailing Vessel, 221
Diesel-Electric System, 765
" Malaya," East Asiatic Co., Ltd., 195 — " Malia," Cammellaird•Fullagar Engines, 503
Number and Tonnage Owned, 157.
— — " Scottish Standard," Trials of Diesel
Engines, 133. See 123
Tabulated Data, 168. See 143*p * See also Marine Propulsion

Spirit. See Motor Fuel*p * Tractors. See Tractors*p * Trans129*port, Impact of Wheels on Road, 119,

by Railway Companies, 156, 220. See 285, 765*p * Road Construction and Vehicle Design, 119, 129**p * in Roumania, 352*p * Slippery Roads and Horse Traffic, 733. See 738*p * Tyre Moulds, Boring and Turning Mill for, 888**p * Wagons. See Motor Lorries ; Tractors Winch, Parsons Motor Co., Ltd.,
25*
Mott, W. R., on Arc Images in Chemical Analysis, 226
Moulding Machines and Foundry Costs, 895*p * See also Foundry
Moulds, Motor Car Tyre, Boring and Turning
Mill for, 888*
Mountain, W. C., on Steam versus Electric
Winding, 141, 166
Muir, W., and Co., Ltd., Puncher Type Slotting
Machine, 811*
Multitubular Boilers. See Boilers
Mumford, E. R., on Cavitation, 85*, 114
Municipal Councils and Engineering Work, 545*p * Electric Supply and Trade Union Action, 705*p * Electricity Undertakings, Supply of Fittings, 734*p * Refuse, Collection and Disposal (Review),384*p * Disposal, London Area, 737, 889*p * Tramways. See Tramways
Museum, South Kensington, Report on, 191 Musker, A., on Loading and Unloading Ships' Cargoes, 52, 81
N
NAPIER'S Bones, Arithmetical Calculations,
601. See LETTER, 661
National Bankruptcy, Meaning of, 107*p * Certificates. and Diplomas, Institution of Mechanical Engineers, 12*p * Gallery, Illumination of, 213*p * Hall Mark for Engineering Goods, 825*p * Physical Laboratory, Work of, 10*, 98*, 158*, 192*, 211* ; Screw Gauge Measur-ing Machine, 558* ; Aluminium Alloys Research, 594, 613, 624, 644
Naval Aeronautics. See Aeronautics
Naval Architects, Institution of :—
Scholarships in Naval Architecture and Marine Engineering, 15
Naval Architects and Marine Engineers, Society of : W. E. Thau on Motor Arrangements for Ship Propulsion, 765 ; W. A. Dobson on the Registration and Classification of American Vessels, 794 ; :Rear-Admiral H. H. Rousseau on Port Facilities 704 ; W. L. Marvin on Competition of American and Foreign Vessels, 794 ; E. H. Rigg on Design and Construction of U.S. Passenger Steamers, 836, 847*
Naval Architecture, Improved Double Bottom Construction, 72*
— — Pressures on Rudders, 651*
— — Scholarships in, 15
— — U.S. Passenger Steamers, Design and Construction, 836, 847*
— Watertight Subdivision of Ships. See Watertight
— — See also Warships*p * Cordite Factory, Coal and Ash-Handling Plant, 706**p * Operations in Great War, History (Review), 767*p * Policies, French, 318
— Powers, Disarmament Proposals, 704, 858 — — Warships Built and Building, 194. See 223
— and Shipping Annual, Brassey's (Review), 798*p * Warfare. See Warships*p * See also Warships
Navigation, Aerial. See Aeronautics and Telegraphy, Wireless*p * Inland, Proposed Organisation of Canals, 156. See LETTER, 220
— in Roumania, 352*p * Wireless Telegraphy in. See Telegraphy, Wireless
Navvy, Steam. See Excavating Machine Navy, British. See H.M. under Warships*p * German. See German under Warships*p * United States. See United States under Warships*p * See also Naval ; Warships ; and PARAGRAPH INDEX
Neale Submarine Lifting Magnet, 311
Necol Industrial Collodions, Ltd., Plastic Wood, 785
Negatron Valve, Wireless Telegraphy, 584* See 409
Nelson, R., on Coal Cleaning Processes, 24, 45, 76 ; on Waste Heat Utilisation, 89
New Jersey, Central Railroad of, Locomotive
Ash-Pits, 125**p * Modderfontein Mine, Air Compressor for, 535*. See LETTERS, 661*p * South Wales, Sydney Harbour Bridge, 880**p * York Central Railway, Container Cars, 820* Newspapers, Railway Rates for, 705
Niagara Power Plant, Hydraulic Turbine and
Generator, 296*, 403* Nickel-Aluminium-Copper Alloys, Properties
of, 453*. See 448*p * Chromium Steel, Curves of Heat Treatment, 552*. See 384
— Steel Turbine Blades, Failures in U.S. Destroyers, 615*, 647*. See 636*p * World's Output, Effect of War, 165. See 139
Nicou, P., on French Iron Ore Deposits, 383
Nidd Valley Hydro-Electric Power Plant, 817*
Niles-Bement-Pond Co., Turning and Boring Mill, 888*
Nitrates, Production of, Statistics, 345
Nitric Acid, Production by Gaseous Explosions, 230
Nitrogen Fixation, •German Plant Explo-sion, 443*p * — Musser Process, 230*p * Liberation from Coal and Coke, 562*p * Products, Statistics, 345
Noble and Lund, Ltd., Railway Wheel Lathe, 280*
Nomenclature of Oils, 418
Nomographic Chart for Gases, Internal Combustion Engines, 302*
Non-Conducting Covering3. See Heat In sulation.*p * Ferrous Metals. See Metals ; Metallurgy Nordberg Manufacturing Co., Winding EnOnes, 565*, 628*, 694*, 752*
North Circular Road, London, 191
North East Coast Institution of Engineers and Shipbuilders :
Middlesbrough Branch, 480
Maritime Risks, by Sir W. S. Abell, 668 Protecting Merchant Ships against Submarines, by Sir E. H. T. d'Eyncourt, 787*
Maag Gearing, by Eng.-Lieut.-Comman-der L. J. Le Mesurier, 801*
Railway Electrification, by Sir V. L. Raven, 858
North Eastern Marine Engineering Co., Ltd., Machinery of S.S. " P.L.M. 20," 339*
- — Railway, Train Loads on, 765, 810 ;

Electrification of, 858 *p Kansas City Bridge, Vertical Lift, 234* *p Notes from, 15, 59, 105, 153, 187, 221, 253, 283, 315, 347, 377, 411, 443, 477, 541, 571, 603, 633, 665, 697, 729, 761, 791, 823, 855, 887. See PARAGRAPH INDEX Norway, Christiania, Free Port for, 728*p * Export of Electric Energy, 259*p * Herlandsfossen Power Plant, 497*, 531* Notched-Bar Tests. See Tests (Materials). Notes on New Books. See Books and LITERATURE INDEX

- See Cleveland; North ; South West; South Yorkshire; and Industrial. See also PARAGRAPH INDEX
Nozzles, 12,500 kw. Turbo-Generator, 874*
- Condensation of Steam in, 750
- Flow of Air and Steam Through, 750
— for Measuring Delivery, Air Compressor Tests, 536*. See LETTERS, 661; See also 461*
Nydquist Holm Aktiebolag. Locomotives for Russia, 695*

Obituary : (Moved to separate index)

Observatory, Edinburgh, Microchronograph at, 500**p * Geophysical, Lerwick, 500
and Reflecting Telescope, Canadian Government, 207*, 240*, 269*. See LETTER, 249. See also 501
Oceanography, Internal Movements in Sea, 499 Of cini Meccaniche, Societa Anonima, Turbine Locomotive, 728*. See 477
Oil Consumption, Marine Diesel Engines, 143, 168*p * Emulsions, Separation of Oil and Water, 771*p * Engines. See Engines, Oil ; Motor Cars ; Tractors*p * Field, Egyptian, Geology of, 608 — — Elimination of Waste, 670. See 827.*p * Fired Tunnel Ovens, Oilgas, 537*p * Fuel for Boiler Firing, Report, 321
— — Burner, Cleary, Domestic Use, 672
— — Burner, Rotamiser, 631*
— — Burner, Wallsend-Howden, 246*
— — Combustion of, 636*p * — Comparisons with Coal, 417
— — Comparisons with Colloidal and Pulverised Fuels, 90. See Erratum, 149
— — for Heavy Oil Engines, 91
— — Installation, Wallsend-Howden System, S.S. " Paris," 246*
— — Marine Propulsion, Development, 639
— — Monopoly of Supply, 417
— — Olympia Conference on, 417
— — and Pulverised Coal. See Colloidal Fuel*p * — Quimby Screw Pump for, 884* — — on Ships, Board of Trade Rules, 372*p * Lubricating, Effect of Fatty Acids, 10*p * Mexican, Statistics, 828*p * Motors. See Engines, Oil ; Motor Cars ; Tractors*p * Nomenclature and Specifications, 418*p * and Paint Storage Plant for Shipyard, 632**p * Petroleum, World's Resources, 571. See 27, 139, 165*p * Power Transmission by, 671*p * Production, Improved Methods, 827. See 670
— — from Shale, 27
— of the World, 27. See 139, 165, 571*p * Switches. See Switchgear*p * Tank Steaniers, Number and Tonnage Owned, 157
— — Steamers, Protection against Submarines, 789*
— — Steamer " San Felix," 441**p * Tractors. See Tractors*p * World's Output, Effect of War, 139, 165, See 27, 571*p * See also Imbrication; Petroleum
Oilfields, Elimination of Waste, 670. See 827
Oilgas, Oil-Fired Tunnel Ovens, 537
Olympia. See Exhibition
Omnibus, Motor. See Motor Omnibus
Omnibuses, Trackless Trolley, York, 354
Omori, F., on Vibration of Wireless Tower, 196*
Open-Hearth Furnace. See Furnace
Opening Bridges. See Bridges
Oppau Nitrogen Plant, Destruction of, 443
Optical Indicators, Comparisons with Piston
Type, 94*p * Investigation, Effect of Scratches on Strength of Materials, 56, 81*p * Properties of Gold Films, 878*p * Pyrometers. See Pyrometers*p * Rotatory Dispersion, 33
— Work of N.P.L., 213
Optics, 72 in. Reflecting Telescope, Canadian
Government, 207*, 240*, 269. See
LETTER, 249. See also 501
— Prisms, Measuring Angles, 213
Orcutt, H. F. L., on Motor Car Gear-Boxes,
830*, 870*, 897*
Ore, Iron, French Deposits, 383. See 418*p * — World's Output, Effect of War, 140, 165*p * Uranium, Occurrence and Treatment, 841 Organic Chemistry. See Chemistry Originality in Secondary Schools, Younger
Research Prize, 17
Ormandy, Dr., on Liquid, Colloidal and
Powdered Fuels, 90. See Erratum, 149 Oscillations, Electric. See Electric and Tele
graphy, Wireless
Osglim Electric Lamp, 450*

Ovens, Coke. See Coke Ovens*p * Tunnel, Marlow Gas-Fired, 536*p — Oil-Fired Oilgas, 637

Overhead Cranes. See Cranes*p * Distribution, Electric Power, Low Voltage, 87, 117
Overseas Representatives, British Engineering Firms, 317*p * Trade and British Manufacturers, 540
Owens, Dr. J. S., Experiments on Air Lift Pumping, 468*, See 430. See LETTER, 693 ; on Suspended Impurity in City Air, 556*. See 12, 531, 737
Oxy-Acetylene Cutting Machines, Davis-Bournonvillo Co., 274*, 307, 356**p * — Welding. See Welding
Oxygen Breathing Apparatus, Mine Rescue
Work, 668*. See 431
Oxygraph Oxy-Acetylene Cutting Machine,
307*. See 274*, 356*
P.
" P.L.M. 20," Cargo Steamer, 839*
Pacific Type Locomotives, United States
Railways, Tabulated Data, 744
Paint and 011 Storage Plant for Shipyard, 632*
— White Lead in, Case against Prohibition,
323. See LETTER, 451
Paish, Sir G., on British Railways, 826
Pallas Petrol Gauge for Motor Cars, 693*
Pan Grinding Mills, Electrically Heated, 852*
Papers for Technical Societies, Preparation of,
514
Paraffin Engines. See Engines, Oil*p * Tractors. See Tractors
Paris Aeronautical Exhibition, 705, 862*p * French Atlantic Liner, 06*, 181*, 246**p * Lyons and Mediterranean Railway, Collet System of Track Repairing, 281 ; Cargo Steamers, 339**p * Meeting, Iron and Steel Institute. See Iron and Steel
Parliament, Engineering Schemes in, 766 --Houses of, Illumination, 213
Parsons, C. A., and Co., Ltd., Regainer for Colliery Fan, 659**p * Motor Co., Ltd., Motor Winch, 25* ; Auxiliary Machinery for Motor Ships, 374**p * Turbines. See Turbines, Steam ; Marine
Propulsion
Partington, J.,
on Waste in Locomotive Operation, 743*
Passenger Steamers. See Steamers .
Patchell, W. H., on Air Heaters, 92. See 57* Patents, Claims Concerning Parts, 809*p * Effect of War Delays in Acceptance, 156*p * Electric Propulsion of Ships, 220*p * Extension Case, Shipbuilding System, 447*p * Foreign, Applications for, 607*p * International Convention and Third Party Rights, 607*p * Machine Gun, Legal Point, 809*p * Office, United States, Permanency of Typewritten Documents, 259
Record, 171*, 205*, 237*, 300*, 331*, 361*, 396*, 494*, 525*, 620*, 682*, 713*, 746,* 808*, 840*, 902*. See PATENT RECORD INDEX
Pattern Shops, E. Allen and Co.'s Works, 335*
Patternmaking, Plastic Wood for, 785
Paul, J. W., Investigations of Motor Car
Exhaust in Tunnels, 872
Paulista Railway, Electric Locomotives, 854*
Payment of Labour. See Labour
Pearson, R. J. A., the Late, 194
Peat Production and Use, 15. 27, 28*p * Carbonisation in Vertical Retorts, 545 Pens, Recording Instrument, Hypodermic Needles, 612
Penallta Colliery, Tests of Air Compressor for, 535*. See LETTERS, 661
Pencoyd Formula, Impact Stresses on Bridges, 50, 80, 118, 189, 350, 881
Pennsylvania Railroad, Decapod Locomotive for, 745* ; Electric Locomotives, Thrust on Rails, 793
Periodicity Measurements, Vibrations, Appa-ratus for, 469*
Permanent Way Repairing, Collet System, 281 Permeability, Concrete, Ferro-Concrete Work, 40, 73. See 23.*p * Gas, of Airship Fabric, Measuring, 57* Petrol Gauge, Pallas, for Motor Cars, 693**p * Motors. See Aeronautics ; Engines, Petrol ; Motor Cars ; Tractiprs*p * Tanks, for Aircraft, Air Ministry Com-petition, 323, 769*p * Tractors. See Tractors
Petroleum Fields, Elimination of Waste, 670.
See g27*p * Mexican, Statistics, 828*p * Production, Improved Methods, 827. See
670
— — of the World, 27. See 139, 165, 571*p * Technologists, Institution of : Dr. W. F. Hume on the Geology of the Egyptian Oil Field, 608 ; A. B. Thompson on Oilfield Waste, 670. See 827 ; A. F. Dabell on Better Production Methods, 827. See 670*p * World's Output, Effect of War, 139, 165*p * World's Resources, 571. See 27, 139, 165*p * See also Oil ; Engines, Oil
Petter, E. W., on the Industrial Crisis, 574 Philadelphia, Schuylkill Power Station, Burst
ing of Turbine Wheel, 829* Photo-Elasticity. See Optical Investigations — — Electric Emission, Theory of, 432 Photographing Projectiles in Flight, 12 Photographs, Aeroplane, Mapping from, 557**p * of War Areas, France and Flanders (Review), 798
Photography, Hints to Travellers (Review), 815 Photometer Lamps, Automatic Voltage Regulator, 711*p * Sphere, at N.P.L., 213
Photometry, Work of N.P.L., 212 Photomicrographs. See Microphotographs Physical Chemistry. See Chemistry*p * Laboratory. See National Physical
Physical Society :
Use of Anderson's Bridge for the Measurement of the Variations of the Capacity and Effective Resistance of a Condenser with Frequency, by S. Butterworth, 711
Earth Capacity Effects in Alternating Current Bridges, by S. Butterworth, 711
Automatic Voltage Regulator, by F. G. H. Lewis, 711
Flow of Viscous Liquids through Conical Tubes, by Prof. A. S. Hemmy, 711 Discussion on Hygrometry, 890
Physics, Aggregation ando Flow of Solids
(Re view), 878
— Fluorescence, Time Interval, 433**p * Four-Dimensional, 501*p Fusion of Carbon, 352*p * Optical Rotatory Dispersion, 83
Physics, Quantum Theory, Discussion on, 434, 467*p * Radiation and Absorption by Atoms, 468*p * Structure of Atoms and Moledules, 629,
827
— of Gaseous Molecules, 827*p * Surface Tension Measurements at Extreme Temperatures, 530
Temperature Measurement (Review), 260
Thermionic and Photo-Electrio Emission, 432*p * See also Physical Society and PARAGRAPH INDEX
Pickling Steel, Brittleness Produced by, 226 Pier Construction, Schemes in Parliament, 767*p * Ferro-Concrete, Deterioration and Pro-tection, 23, 40, 73
— and Foundations, American Vertical Lift Bridges, 201, 264*
Piercing Machine, Billet, Rotary, Tube Manu-facture, 397*,
429*, 496*, 627*. See LErrtits, 612, 660
Pig Iron Prices. See Metal-Price Diagrams Piggott, T., and Co., Ltd., Sulphate of Ammonia Plant, 135*
Pile Driving, Gauging Penetration, 128, 131*. 684*. See LETTERs, 766, 861*p * Safe Loads on, 684. See LETTERs, 766, 851
Pilot Balloons. See Aeronautics
Pine, Scots, Mechanical Properties, 387*, 405
Pinions. See Gears ; Gearing
Pipes, Cast Iron, Water, Corrosion of, 145, 168*p * Fluid Flow in, Boundary Conditions, 10**p * Ferro-Concrete, Water Supply, 145, 168 — — Concrete, Winnipeg Aqueduct, Construction of, 624**p * Gas, Corrosion of, 563
— Incrustation and Iron Bacteria, 457*.
See 480*p * Joints, Ball and Socket, Grain-Handling
Plant, 371*
— — " Victaulic," 375**p * Line, Nidd Valley Power Plant, 817**p * Steam. See Steam Pipes*p * See also Tubes
Pipettes, Notes on, 854
Pistons, Aluminium Alloy, for Aero Engines,
613. See 595, 625
Pit Props, Scottish Timbers for, 405
Pith Balls, Behaviour in Ionized Atmosphere,
434
Pitot Tube, Investigation of Fluid Flow in
Pipes, 10*
Pitting. See Corrosion
Pittsburgh, Moving Buildings in, 842*
Planck's Quantum Theory, Discussion on, 434,
467
Planing Machine. See Machine Tools Plantation Rubber, Uniformity of, 733 Plastic Wood for Pattern Making, andc., 785 Plate-Flanging Machine. See Machine Tools*p * Girders, Stresses in Webs, 349*p * Shearing Machine. See Machine Pools*p * Steel, Hydraulic Flanging Press for, 72**p * Steel, Prices. See Metal-Price Diagrams*p * Thick, Calculation of Strength, 209*, 245*. See Errata, 246, 283*p * Thin, Heat Emission in Air Currents, 10 Plating, Ships', Stresses due to Fluid Pressure,
368*, 405. See LETTERS, 410* 486, 540*,
567, 612, 640, 693
Platinum Resistance Pyrometers. See Pyrometers
Plough, Motor. See Tractor
Ploughing, Cable, Oil Tractor for, 36**p * Trials, Agricultural Tractors, Shrawardine, 446, 481*p * — French, Agricultural Tractors, 676 Pneumatic Grain Elevators, Port of London, 864*. See 859*
— — Handling Plant, Bordeaux-Bassens, 312*, 370**p * Hose Coupling, 215**p * Tools. See Machine Toole*p * See also Compressed Air • Air Compressor
Poison Gases in Warfare, 382
Poisoning, Carbon Monoxide Gas, 259. See 319*p * Industrial, Susceptibility and Immunity,159*p * White Lead, among Painters, 323. See LETTER, 451
Polarised Light. See Optical Investigations, Stress Distribution
Polishing Metals, Investigations of (Review), 878
Political Economy, Finance and Taxation in United States (Review), 614
Pollard, F., and Co., Ltd., Drilling Machine Details, 783*
Pollock and McNab, Ltd., Turret Lathe, 758* Pollution, Atmospheric, by Chemical Works, 190*p * of Atmosphere by Smoke, 554*, 656*. See 12, 531, 737
Pooley and Austin, Ltd., Rotary Pump, 416*. See 68*
Poplar Power Station, Ash-Handling Plant, 231*.
Port Facilities and Development of United States Shipping, 794*p * Free, for Christiania, 728*p * of London, Royal Albert Dock Extension, 2*, 109 ; Shipping Statistics, 381; Pneumatic Grain Elevators, 864* See 859**p * r f Shanghai, Possibilities of Improving, 797 Portable Engine. See Engine*p * Machine Tools. See Machine Tools
Portevin, A. M., on Tungsten and Molybdenum Steels, 372* ; on Heat Treatment of Steel, 551*. See 384
Portland Cement. See Cement
Portobello Power Station, Edinburgh Corpora-tion, 422*
Portugal, San Domingos Mine, Air Lift Pump, 460*. See 430, 693
Positive Rays and Chemical Analysis (Review), 846
Pot Clays, Stourbridge, Compositions, 601 Potentials, Contact, of Metals, Theory of, 432 Pottery, Oil-Fired Tunnel Oven for, 537*p * Tunnel Oven, Marlow Gas-Fired, 536
Poulton, E. L., on Capitalism, 379. See Erratum 419
Powdered Coal. See Pulverised Coal
Power Alcohol. See Alcohol ; Allotor Fuels*p * Electric, Economic Limits of Distribution,
117, 128*
— — Export from Norway to Sweden, 269
Joint Supply in Midlands, 191, 226
— Long-Distance Transmission, 409, 687*
— Low Voltage Overhead Distribution, 87, 117*p * — Municipal Supply and Trade Union Action, 705*p * Use in Mineral Industry, 24, 44, 76*p * Factor Improvement, Electric Distribution Systems, 47, 79*p * Gas. See Producers ; Engines, Gas*p * Hammer. See hammer under Machine Tools*p * Plants, Advantages of Automatic Stokers, 91
— Heat, Thermal Efficiency, Means of Improving. See Mechanical Engineers*p * — Engine House Losses, 68 — Feed Heating and Economisers in, 04 — Hydro-Electric, Civil and Mechanical Engineering (Review), 736*p * Hydro-Electric, in Formosa, 159*p * Hydro-Electric, Herlandsfossen, 497*, 531*
— Hydro-Electric, Hydraucone Regainer
for Turbines, 293*
— Hydro-Electric, Niagara, Turbine and
Generator for, 296*, 403*
— — Hydro-Electric, Nidd Valley, 817**p * — Hydro-Electric, Schemes in Parliament, 767.*p * — Hydro-Electric, in Scotland, Linking up, 410. See 406
— — Hydro-Electric, and Water Shortage in California, 288*p * Steam and Mercury Vapour, 64*
— Wind-Driven Electric, Wilkinson System, 282
— — See also Power Stations ; Power, Water ; Sub-Stations*p * Press. See Machine Tools*p * Production, Coal and Water, Canada, 890*p * Oil Fuel for, 417*p * — from Sewage Gas, 456*. See 431
— Utilisation of Exhaust Steam, 24, 42, 74, 141, 165*. See Errata, 153*p * — Waste Heat, Gasworks, 24, 45, 77
— for Ship Propulsion, See Marine Propul
sion ; Ship Resistance*p * Stations, Boiler House Management, 67, 92. See LETTER, 149*p * — Electric, Old and Modern Plant, 514 — Electric, Blackburn, Opening, 608
— Electric, Coal Fired, Economic Limits of Distribution, 117, 128*
— — Electric, Edinburgh Corporation, 422* — — Electric, Liverpool, Turbo-Generator for, . 873*
— — Electric, London, Unification, 857. See 638*p * — Electric, Poplar, Ash-Handling Plant, 231*
— —Schuylkill, Philadelphia, Bursting of Turbine Wheel, 829**p * — Utilisation of Waste Heat, 89
— See also Power Plants ; Sub-Stations*p * Supply, Electric, Co-ordination of, 638, 857 — — Electric, Greater London, Unification, 857*p * Electric, Local Authorities and Fittings,
734
— — Electric, Power Factor Improvement, 47,
79
— — Electric, Schemes in Parliament, 767*p * Tidal, Analysis of Severn Scheme, 424*. See 406, 422. See LETTER, 540 Transmission of Electrical Energy, 409, 587**p * Transmission, High-Tension Electric, Inter-national Conference, 673*p * — by Oil, 671*p * — Superposed Belts, 262
— — Testing Machine, Spur and Chain Gears,
11*
— — See also Gearing ; Marine Propulsion*p * Water, British Empire Resources, 639, 828
— — Canadian Resources, 226, 890
— Civil and Mechanical Engineering (Re
view), 736
— Formosa Development, 159
— — German Resources, 15
— — Hydraucone Regainer for Turbines, 293*
— — in Mineral Industry, 24, 44, 76
— — Need for Utilisation, 828
— — Nidd Valley Installation, 817*
— — Report of Committee, 639
— — Research Required, 421. See 406
— — in Scotland, Schemes in Parliament, 767
— of the World, Development, 420. See
406
— — See also Hydraulic ; Power Plants, Hydro
Electric ; Turbines, Hydraulic
Powering of Ships (Review), 161
Premium Pupils and Apprentices, 667
Presidential Address to British Association, by
Sir E. Thorpe, on Problems of Science, 381
— to British Association (Chemical Section), by Dr. M. 0. Forster on Bio-chemistry, 529
— — to British Association (Economics Section), by W. L. Hichens, on Wages Determination, 445
— — to British Association (Engineering Section), by Prof. A. H. Gibson, on Water Power, 420. See 406*p * — to British Association (Physical and Mathematical Section), by Prof. 0. W. Richardson, on Problems of Physics, 431*p * — to Institution of Automobile Engineers, by G. W. Watson, on Standardisation, 573*p * to Institution of Civil Engineers, by W. B. Worthington, on Railway Maintenance and the Civil Engineering Profession, 635, 646
— to Institution of Electrical Engineers, by J. S. Highfield, on The Training of Mechanics, 667
— — to Institution of Engineers and Ship-builders in Scotland, by H. E. Yarrow, on Shipbuilding Researoh, 574
Presidential Address to Institution of Gas Engineers, by T. Goulden, on the Gas Industry, 546
— — to Institution of Mining Engineers, by
Sir J, Cadman, on Mining Industry, 418 — to Institute of Transport, by Sir H. P.
Maybury, on Road Development, 576
— — to Junior Institution of Engineers, by
H. I. Brackenbury, on Waste, 514 • — — to Junior Institution of Engineers, by C. H. Wordinghain, on a National Proving House, 826*p * to Manchester Association of Engineers, by F. J. West, on Industrial Economics, 545
— to Trades Union Congress, by E. L. Poulton, on Capitalism, 379. See Erratum, 419
Press, Baling, Hay or Straw, Ruston ez. Hornsby, Ltd., 38**p * Briquetting, Duplex, for Coal, 689**p * Work, Sheet Metal, Motor Car Indu.stry,523**p * See also Machine Tools
Pressure Conduits. Ferro-Concrete, Water
Supply, 145, 168*p * Earth, Theories of, 123, 132*p * Fluid, Stresses in Ships' Plating, 368*, 405. See LETTERS, 410*, 486, 540*, 567, 612, 640, 693
Prices of Metals. See Metal-Price Diagrams Priestman Brothers, Ltd., Grab Ditching Machine, 722*
Primary Battery. See Cell under Electric Printing Machinery, Electrically-Driven, Inching Starter for, 99*
Prisms, Hollow Quartz, Construction of, 468**p * Measuring Angles, 213
Producer Gas Engines. See Engines, Gas
— Fuels for, Laboratory Tests and Results,
668
— — Installations, Carbon Monoxide Poison
ing, 259. See 319
— — for Motor Lorries, 575, 580*p * Plants, Suction Gas, Derby Agricultural Show, 8*, 9*p * Suction Gas, Wood Refuse, Davey, Paxman and Co., Ltd., 8*
Production, Engineering, Increasing, Employers' Part, 156*p * Engineers, Institution of, 156
Profession, Engineering as, 692, 756, 785, 819,
851 (see Erratum, 887), 886
Profits, Industrial, Basing Wages on, 61*p * Sharing. See Labour
Projectiles, Forging, Treatise on (Review), 450*p * Hot Drawing on Mandril, 678*. See LETTER, 693*p * Photographing in Flight, 12
Propaganda, Industrial, Among Workers, 763
Propellers, Aerial. See Aeronautics*p * Marine, Cavitation Phenomena, 114
— Detail Design (Review), 322
— — N.P.L. Experiments, 99*p * Shafts, Torsional Vibrations, 363*. See LETTERS, 661
Propulsion of Ships. See Marine Propulsion ; Engines ; Turbines ; Propellers ; Ship Resistance
Proving House, Suggested National, 825
Public Works Exhibition, Agricultural Hall, 734*. See 752, 759*, 769, 853* ; Congress, 737
Pullman Cars, London, Brighton and South
Coast Railway, 217
PuLsometer Engineering Co., Ltd., Stereo
phagus Pump, 644*
Pulverised Coal, Comparisons with Oil and
' Colloidal Fuels, 90. See Erratum, 149
— — Cost of Preparing, 204
Pulveriser, Gannow, for House Refuse, 735.
See 890
Pump, Air Lift, for Acid Mine Liquors, 460*.
See 430, 693
— Lift, Experiments on, 430, 458*. See
LETTER, 693
— — Scavenging, Diesel Engine, 722*
— See also Air Compressors
Aquatole Spring Belt Type, 37, 417*p * Boiler Feed, the Anthony, 658**p * Centrifugal, Ceratherm, for Chemicals, 852*
— — for Floating Docks, 742*. See 720
— Development of, 430, 642*
— for Drainage, at Memphis, 643*
— — Flexala, 64:3*
— — Materials for Construction, 642
— — Medium Lift, and Characteristic Curves,
644*
— — Stereophagus, for Sewage, 644**p * Turbine-Dtiven, Comparisons with Reciprocating Pumps, 23, 42, 74. See LETTER 279. See also 430, 644*
— Turbine, High-Pressure, Multi-Stage, 644* — — Twin-Impeller, with Geared Turbine Drive, 644*
Endless Belt Type, 37, 417
— — Rope Type, the Hydrohoist, 759
— Feed-Water, for Locomotives, Weir's, 150* — Fire and Washdown, for Floating Docks, 773* Hydraulic, E. Allen and Co.'s Works, 272**p * Hele-Shaw System, Spring Buckling
Press, 502*
— Stainless Steel Rams, 594**p * Measuring, for Paint and 011, 632**p * Rotary, Quimby Screw Type, 884*
— Vacuum Turbo-, and Reciprocating, for Grain
Elevators, 313*, 859*, 862*p * Valveless, Cam and Rubber Belt Type, 416* — — Cam and Rubber Tube Type, 58* Pumping Engines, Reciprocating, and Turbine
Driven Pumps, Comparisons, 23, 42, 74.
See LETTER, 279. See also 430, 644**p * Machinery for Floating Docks, 739*. See
720, 772*
Purification, Sewage. See Sewage*p * Water. See Water
Push Button Switch, Magnetic Blow-Out, 101*
Pyne, Sir T. S., the Late, 409
Pyrograph Oxy-Acetylene Cutting Machine,
366*. See 274*, 307*
Pyrometer, Optical, Portable, Dr. Griffith's,
193k
Pyrometry, Foundry, Horwich Works, 8:36*p * Treatise on (Review), 260

Q. *

QUADRUPLE - Expansion Engines. See
Engines
Quantum Theory, Discussion on, 434, 467
Quartz, Effect of Temperature on Elastic
Modulus, 193
— Interferometer Tubes and Prisms, Con
struction of, 468*
Quays, Deep-Water, Design of, 822
Quay Walls, Stability of, 822
Quebec Bridge, Comparison with Forth Bridge,
531
Quenching of Steel. See Heat Treatment
under Metallurgy
Quicksilver. See Mercury and Metal-Price
Diagrams
Quimby Screw Pump, 884*

R. *

R. 38, Airship, Loss of, 320, 545. See 347, 651* Radial Drill. See Drill under Machine Tools

• * — Transporter, Coal-Handling, Holton Heath Cordite Factory, 707*

Radiation and Absorption by Atoms, 468*p * in Chemical Reactions, 512. See 411*p * Pyrometers. See Pyrometers*p * Quantum Theory, Discussion on, 434, 467*p * X-Rays, Energy of, 469
Radioactivity and the Age of the Earth, 498*p * Properties and Uses of Uranium, 841 Radiograph Oxy-Acetylene Cutting Machine,
274*, See 307*, 356*
Radiotelegraphy. See Telegraphy, Wireless Radium, Precautions for Handling, 13*p * Testing at N. P. L., 211
Railless Electric Traction, Omnibuses at York,
:354
Railroad, Erie, Locomotive for, 745**p * Central of, New Jersey, Locomotive Ash-Pits, 125**p * Pennsylvania, Deca,pod Locomotive for, 745 '• Electric Locomotives, Thrust on Rails, 793*p * Virginian, Mallet Locomotive for, 745*p * See also Railways
Railway Accidents. See Accidents*p * Bridge. See Bridge
— British, Competition with Canals, .156.
See LETTER, 220*p * — Increasing Loading Gauge and Clear
ances, 20, 30
— — Effects of New Bill, 285*p * — Future of, 826
— and the Great War (Review), 845
— — Higher Labour Costs, 826
— — 1920 Statistics, 764. See LETTER, 819
— — Structural Outlines, 20, 30*p * — Train Loads on, 765, 819, 827*p * Carriage. See Carriage*p Chilian, Electrification of, 797*p * Companies and the Carriers' Act, 545*p * — Competition with Coastwise Shipping, 32, 111, See 109*p * — and Road Transport, 156, 220. See 285, 765*p * Electric, Comparisons of Steam and Electric Locomotives, 138, 164. See 50, 793, 859*p * Electrification, North Eastern, 858*p * — Working Advantages, 858*p * Great Northern, Dining Car Train, 570*p * Indian, Gauge Problem, 696
— — Locomotive Building in India, 514 '*p * — Reports on Bridges, 349*p * Japanese Government, jubilee, 311 Lancashire and Yorkshire, Horwich Works, Foundry Control, 832**p * Locomotive. See Locomotive*p * London, Brighton and South Coast, Re-construction of Ebury-Street Bridge, 163*, Pullman Cars for, 217*p * — and North Western, Locomotive Boiler Explosion, 759. See LETTER, 786*p * Midland, Dining Cars, 105 ; Electric Battery Locomotives, 147, 170*p * New York Central, Container Cars, 820**p * Paris, Lyons and Mediterranean, Collet System of Track Repairing, 281 ; Cargo Steamers, 339*
Paulista, Brazil, Electric Locomotives, 854**p * Rates for Newspapers, 705*p * Rolling-Stock. . See also Carriages ; Loco-motives ; Wagons*p * Schemes in Parliament, 766*p * South African, Train Loads on, 701*p * Street. See Tramways
— Structures, Maintenance of, 635, 646. See
21, 30, 49*p * Swiss, Zoelly Turbine Locomotive, 292*
' — Track Repairing, Collet System, 281
— — Work, E. Allen and Co., 272**p * Transport, Need for Unification, 544 — — in Roumania, 351*p * Trucks, Revolving Tippler for, Holton Heath Cordite Factory, 706**p * Tunnels, Repairs and Maintenance, 21, 30, 49*p * United States, Locomotive Design and
Economical Working, 743*
— — States, Train Loads on, 701*p * Use of Ferro-Concrete, 49, 79
— — of High Capacity Wagons, 701. See 827*p * Wagons. See Wagons*p * Wheels, Lathe for Turning, 280**p * See also Railroads and PARAGRAPH INDEX Rails, Calculation of Stresses, 431*p * Damage by Brakes and Slipping Wheels, 54, 82**p * Steel, Prices. See Metal-Price Diagrams Rainfall Deficiency in California, 288*p * Distribution and Measurement, 256*
— and Run-Off Ground, Relationship, 146, 169, 258, 513. See Errata, 195
Rambush, N. E.,, Tests of Producer Fuels, 668 Ramsay, A., on Organisation of Industry, 683 Rand Mine, Air Compressors for, 535*. See LETTERS, 661
— Water Supply, Vaal River Barrage, 325* Range Finders, Light Transmission, 213
Rankine, Prof. A. 0., on Structure of Gaseous Molecules, 827
Rankine, W. J. M., the Work of, 861 Ransome, A. and Co., Ltd., Swaging Machine for Band Saws, 186*
Ransome Machinery Co., Ltd., Concrete Mixer, 735*
Ransomes, Simms and jefferies, Ltd., Electric Run-About Crane, 564*
Raven, Sir V. L., Comparisons of Steam and Electric Locomotives, 138, 164 See 793 ; on Railway Electrification, 858
Rays, Electric. See Positive ' • ROntgen Reactions, Chemical. See Chem istry
Read, Prof. A. A., on Nickel-Aluminium-Copper Alloys, 453*. See 448
Reavell and Co., Ltd.,
Air Compressors and
Turbo-Blower, 435* ; Turbo-Exhausters, for Grain Elevators, 860*, See 865 Recalescence Curves. See Metallwrgy Reciprocating Masses, Balancing, Exponential Analysis, 778*
Reconstruction, French Iron and Steel Industry, 383. See 418, 636*p * War Devastation in France, Economic Effects, 636. See 383, 418*p * See also PARAGRAPH INDEX
Record Engineering Co., Ltd., Starting Device for Petrol Engines, 437* ; Internal-Combustion Engines, 438* ; Steam Trap, 821*
Recording Gas Calorimeters, Report, 546. See 571
— Instruments, Hypodermic Needles for Pens, 610*p * Ultra-Micrometer, Thermionic Valve Type, 395*. See 469
Rectangular Plates, Two-Dimensional Stresses in, 523*
Rectifiers, Mercury Vapour, for Alternating Current, 403. See 588
Reduction Gears. See Gears ; Marine Pro-pulsion; Motor-Car .Details
Reel, Cable, for Portable Electric Tools, 550* Reflecting Telescope, 72-in., for Canadian
Government, 207*, 240*. 269*. See

LETTER, 249. See also 501

Refractories, Alumina and Corundum as, 537 Refractory Materials, Effect of Coal Gas, 560 — — Effect of Oxidising and Reducing Atmo
spheres, 560
— — Hardness Tests at High Temperatures, 377
— — of London Basin, 536*p * — Research on, 560*p * — Softening of Fireclay and Silica Mixtures,
560
— — Thermal Expansion of Silica, 576**p * — See also Firebricks ; Fireclays*p * Substances, Volatilisation in Electric Arc,
226
Refrigerating Plant, West's Ammonia Com
pressor,
Refrigeration, Insulation of Cold Stores, 606*p * See also Cold Stores
Refuse, House, London, Disposal of, 737, 889
— — Pulverising Plant for, 735, 890*p * Municipal, Collection and Disposal (Review), 384
N.• •••
Regainer for Colliery Fan, 659*
Regenerative Furnace. See Furnace Registration of United States Shipping, 794 Regulations, Board of Trade, Oil Fuel on Ships,
372
Regulators, Boiler Feed-Water, Automatic, 277* 785*
Temperature, Samson Automatic, 307**p * Voltage, Photometer Lamps, 711 Reheating Furnace. See Furnace
Reid, H. C., on Dredging and Training Walls in Estuaries, 121, 131
Reinforced Concrete. See .Ferro-Concrete Relativity Contraction in Rotating Shaft, 433*p * Prof. A. S. Eddington on, 433
Relief Bolts, Electrical Mining Apparatus, 376 Remuneration of Labour. See Labour Repairing Cracks, Copper Tube Plates, Locomotive Boilers, 251**p * Railway Track, Collet System, 281 Repairs, Locomotive, Reducing Cost, 743*p * of Railway Tunnels, 21, 30, 49*p * of Road Appliances, 738*p * Ship, Liability for Negligence, 608
Repeated Stresses. See Alternating Stress
under Tests (Materials)
Report, Alkali Works in 1920, 190
— Alloy Steels Research, United States, 892*p * B. A. Committee on Complex Stress Dis-tribution, 408*p * B. A. Committee on Fuel Economy, 531*p * B. A. Committee on Seismological Investi-gations, 499*p * B. A. Committee on Tides, 499*p * British Trade in India, 884*p * Carbon Monoxide in Town Gas, 318. See 259*p * Coal and Water Power in Canada, 890*p * Economic Situation in Austria, 256*p* - Education of Engineers, 705*p * Electricity Commissioners, 638, 857*p * Engineering Standards Association, 236*p * Explosives in 1920, 109*p * Fires in Ships' Bunkers, 892*p * House Refuse Disposal, London Area, 889*p * Incombustible Constituents in Town Gas,
351
— Indian Railway Bridges, 349
— Industrial Accidents, 224.
— — and Scientific Research, 606*p * Liberation of Nitrogen from Coal and Coke, 562*p * Life of Gas Meters, 342, 563*p * Lloyd's Register of Shipping, 639*p * Loss of Airship R. 38 (Z.R. 2), 645. See 320, 347, 651**p * Materials for Aircraft and Aircraft Engines (Review), 485*p * Motor Car Headlights, 671*p * Oil Fuel for Steam Boilers, 321*p * Progress of Applied Chemistry (Review), 227*p * Recording Gas Calorimeters, 546. See 571*p * Railway Accidents, Ministry of Transport, 891
Report, Research, Aluminium Alloys, 594, 613, 624, 644*p * — in Electrical Industry, 639*p on Refractory Materials, 560*p * Slippery Roads, Ministry of Transport, 733. See 738*p * South Kensington Museum, 191*p * Spontaneous Combustion of Coal in Mines, 380 in Ships' Blinkers, 892*p * Steaming in Vertical Retorts, Gas Manu-facture, 363, 560*p * United States Advisory Committee for Aeronautics, 152*p * Water Gas in Gas Manufacture, 547. See 546*p * Water Power Committee, 639*p * See also Board of Trade
Representatives, Foreign, British Engineering
Firms, 317
Rescue Apparatus, Mine, Liquid Air and Com
pressed Oxygen, 568*. See 431*p * Work, Mine, and Organisation (Review), 362 Research, Alloy Steels, United States, 892 Aluminium Alloys, Report, 594, 613, 624, 644*p * Board, Fuel, Peat Carbonisation, 545*p * Electrical Industry, Report, 639*p * Fellowships, British Empire Exhibition, 734*p * Fuel, East Greenwich Station, 564*p * Hydro-Electric Problems, 421. See 406*p * Industrial and Scientific, Report, 606*p * Prize, Younger, Glasgow . High School of Science, 17*p * Proposed, Properties of Steam, 320*p * Refractory Materials, Need for Support, 560*p * Scientific and Industrial, Organisation, 382 — in Shipbuilding and Marine Engineering, 574*p * Work, Electrical Insulating Materials, 639*p * See also National Physical Laboratory Reservoir, Angram, Hydro-Electric Power Plant, 817**p * Birkenhead Water Supply, 286*

Resistance, Electric. See Electric*p * Pyrometer. See Pyrometer*p of Ships. See Ship Resistance*p * Units for Motor Starters, 99**p * Welding. See Welding

Resonance Effects, Electric Power Transmis-sion, 409, 587*
Respirators, Industrial, Dust and Fumes, 672 Retorts, Coal Carbonisation, Coalite Manufacture, 589*. See 68, 110
— — Carbonisation, Smith Continuous Pro-cess, 175*. See 68*p * Horizontal, Gas Manufacture, Carbonisa-tion in, 561
— Vertical, Carbonisation of Peat, 545 — — Gas Manufacture, Steaming in, 363, 580 Reviews. See LITERATURE INDEX Rheolaveur Coal Washing Process, 24, 45, 76 Ricardo's Compound Internal-Combustion
Engine, 70*
Rice and Co. (Leeds), Ltd., Hydraulic Flanging Press, 72*
Richards, E. H., on Straw Filters for Sewage, 86, 114. See Erratum, 153
Richards, E. W., the Late, 701*. See 720 Richards, Dr. J. W., the Late, 664 Richardson, J., on Large Marine Diesel
Engines, 143, 168
Richardson, Prof. 0. W., on Physical Problems, 431
Rigg,—E. H., on U.S. Passenger Steamers,
836, 847*
Rigid Airships. See Airships under Aero
nautics
Riley, A. J., on Seaplanes, 406
Ring Turning Tool, Top Rake and Clearance,
95*
Rivers, Compensation Water and Water
Supply Schemes, 144, 169*p * Estuaries, Dredging and Training Walls, Comparisons, 121, 131
— Tidal Flow and Silting, Investigations by Models, 121, 130
— Flow, Rainfall and Rim-off Ground, 146, 169, 258, 513. See Errata, 195*p * Maintenance and Land Drainage, 120, 130*p * Scotch, Linking up Small Water Powers, 410. See 406*p * Tidal, Discharge of, Effect of Sluices and Barrages, 121, 130*p * Vaal Barrage, Rand Water Supply, 325* Road Appliances, Care and Upkeep of, 738*p * Construction, Bituminous Macadam for, 120, 128*p * — Concrete Mixing Machines, 734*
— — Ferro-Concrete, North London Circular
Road, 191
— and Vehicle Design, 119, 129*
— — Tar Macadam Mixing Machines, 735*p * Developments,London Area, 576*p * Exhibition, gricultural Ball, 734*. See
752, 759*, 769, 853* ; Congress, 737
— Ferro-Concrete, and Underground Mains,

• * 738

— Improvements, Schemes in Parliament, 767*p * Location, Grading and Drainage, Treatise on (Review), 290*p * Locomotives. See Motor ' • Tractor*p * Maintenance, Cost of, 738*p * North Circular, London, 191*p * Roller, Motor, Ruston and Hornsby, Ltd..
759* ; Barford and Perkins, Ltd., 884*
— — Steam and Internal Combustion, Public
Works Exhibition, 735, 759*. See 752, 884*
— Steam, Ruston and Hornsby, Ltd., 38**p * — and Traction Engine, Fowler's Conver-tible, 36
— Testing Machine, National Physical Labora-tory, 11*p * Traction, Railless Electric. See Railless — Transport by Railway Companies, 156, 220. See 285, 765
— — in Roumania, 352
— — Slippery Roads and Horse Traffic, 733. See 738*p * Tunnels, Motor-Car Exhaust in, 872*p * Wheel Impact, Solid and Pneumatic Tyres, 119, 129**p * Work, Coal Tar for, 738*p * — Tamping Machine for, 735, 853*. See Erratum, 759
Robertson, W. H. A., and Co., Ltd., Billet Piercing Machine, 627*. See 397*, 429, 495*, 612, 660
Robinson, D. P., and Co., Locomotive Ash-Pits, 125*
Robinson, T., and Sons, Ltd., Grain-Handling Plant, Bordeaux-Bassens, 312*, 370* Rock Excavation, Vaal River Barrage, 326*p * Subaqueous, Blasting, Pier Foundations,
Harriman Bridge, 264*
Rods, Brass, Extrusion Defect in, 487*. See
483
— — Season Cracking of, 297*
Rogerson, A. C., the Late, 104
Rolfe, R. T., on Effect of Lead on Gun Metal,
580*. See 448
Rolled Steel Beams and Channels, Properties
of, 712*p * Zinc, Properties and Microstructure, 489*.
See 484
Roller Bearings. See Bearings*p * Road. See Road Roller
Rolling Aluminium Alloys, 613. See 596, 626*p * Mill, Billet Piercing, Tube Manufacture, 397*,
429*, 495*, 527*. See LETTERS, 612, 660*p * Stock. See Carriages; Locomotives ; Wagons Röntgen Rays, Energy of Radiation, 469*p * — Spectrometer at N.P.L., 211*p * — Work, Protection of Operators, 13
Ropes, Wire. See Wire Ropes
Ropeway, Aerial. See Ropeway
Rosenhain, Dr. W., Report on Aluminium
Alloys, 594, .613, 624, 644
Ross, A.,
on Home Railways, 20, 30
Rostoff, Vertical Lift Bridge, 268*
Rotamiser Oil Fuel Burner, 631*
Rotary Billet Piercing Machine, Tube Manu
facture, 397*, 429*, 495*, 527*. See
LETTERS, 612, 660*p * Converters, Design of Large Units, 402*
— — Sub-Station, Automatic, Toronto Tram
ways, 747**p * Engine. See Engine ; Aeronautics*p * Kiln, Cement Manufacture, E. Allen and Co., 337**p * Pump. See Pump
Rotatory Dispersion, Optical, 33
Rotor Wheel, Turbine, Bursting of, 829*
Rotors, Turbine, Critical Speeds, 1*, 717*
Roumania, Transport Problem in, 351*p * Trade with, 188
Rousseau, Rear Admiral H. H., on Port
Facilities, 794
Rowell, Sir H. B., the Late, 13*
Roxburgh. W. L., on the Development of the
Coasting Trade, 32, 111. See 109
Royal Aeronautical Society. See Aeronautical*p * Agricultural Society. See Agricultural — — Hall. See Exhibition*p * Albert Dock, London, Extension, 2*, 109 Royal-Dawson, F. G., on Indian Railways, 696*p * Meteorological Society. See Meteorological*p * Naval Cordite Factory, Coal and Ash-Handling Plant, 706**p * Sanitary Institute. See Sanitary
Royal Society :
Bakerian Lecture on Optical Rotatory Dispersion, by Dr. T. M. Lowry and Dr. P. C. Austin, 33
Royal Society of Arts. See Arts
Rubber, Extending Applications for, 851*p * Industry, Institution of, Inauguration, 575 ; Dr. H. P. Stevens on Plantation Rubber, 733; F. Jones, oirWidening Field of Rubber Manufacturing, 851*p * Plantation, Uniformity of, 733*p * Vulcanising Pan, Explosion of, 236 Rudders, Ship and Airship, Pressures on, 651* — — N.P.L. Experiments, 99 Rudge-Whitworth, Ltd., Grading Machine for
Steel Balls, 60*
Rules, Board of Trade, Oil Fuel on Ships, 372 — International, Bills of Lading, 414 Rumpler, E., 1,000-h.p. Aero Engine, 252 Run-About Electric Crane, 564*
Run-off and Rainfall, 146. 169, 258, 513. Rushton, K., the Late, 477
Russia, Rostoff Vertical Lift Bridge, 268**p * Kursk District, Magnetic Anomaly, 469*p * Swedish Built Locomotives for, 695*
Rusting. See Corrosion • Ruston Lt Hornby, Ltd., Baling Press and Road Roller, 39* ; Motor Road Roller, 759*
S.
SAFETY Bolts, Electrical Mining Apparatus 376
— of Life at Sea, Analysis of Risks, 668 ; See also Water-Tight Sub-division*p * Petrol Tanks for Aircraft, Air Ministry Competition, 323, 769*p * Regulations in Mines, Effect, 418
Saint. See St.
Salford, Atmospheric Pollution in, 554*. See 531, 555*, 737
Salmon, Dr. E. H., on Machinery of Floating Docks, 720, 739*, 772*
Salvage Work, Lifting Magnet for, 311
— — Temple Gun for Stud Driving, 475 Samson Automatic Temperature Regulator, 307*
Samuelson, F,. on Increasing Economy of Steam Engines, 64*
" San Benito," S.S., Electrically Propelled, 481 San Domingos Mine, Air Lift Pump, 460*. See 430, 693
" San Felix," Oil Tank Steamer, 441*.
Sandberg, C. P., on Damage to Tyres and Rails by Brakes or Slipping Wheels, 54, 82* Sandeman, E., on Compensation Water, 144, 169
Sanders, W. C., orwpontainer Cars, 820*
Sandwich System, Education of Engineers, 705
Sanitary Institute, Folkestone Congress, 12 Sanitation, Refuse Collection and Disposal (Review), 384
— Refuse Disposal, London Area, 737, 889
Santiago-Valparaiso Railway, Electrification,
797
Saurer Gear Testing Machine, 801*
Bayne, L. H., on Deterioration of Reinforced
Concrete Structures, 23, 73
Saws. See Machine Took
Scar House Dam for Water Power Plant, Con
struction, 817*
Scavenging Pumps. See Pumps, Air
Schlesinger, Prof. G., Planing Machine Inves
tigations, 886
Schneider, E., Investigation of Hot Drawing,
678*. See LETTER, 693
,Scholarships. See Education
Schuylkill Power Station, Bursting of Turbine
Wheel, 829*
Science Museum, South Kensington, Report
on, 191*p * Post-War, Aspects and Problems, 381 Scientific Control, Boiler Houses, 67, 92. See LETTER, 149*p * Management. See Works Management*p * Research. See Research*p * Societies. See Institutions
Seleroscope Tests. See Hardness under Tests
(Materials)
Scotland, Forth and Clyde Canal, Proposed, 407, 462*p * Institution of Engineers and Shipbuilders in. See Engineers*p * Occurrence of Malaria in, 442*p * Small Water Powers, Linking up, 410. See 406*p * Water Power in, Schemes in Parliament, 767 Scots Pine, Mechanical Properties, 387*, 405 Scott-Taggart, J., on Negative Resistance Devices, 584*. 585*. See 409.
" Scottish Standard," M.S., Trials of Diesel Engines, 133. See 123.
Scottish Timbers for Aeroplanes and Pit Props, 405
Scotts' Shipbuilding and Engineering Co., Ltd.,Double Reduction Gearing, 376* ; Trias of Still Engine, 344*
Scratches, Effect on Strength of Materials, 66, 81
Screw-Cutting Lathe. See Lathe under Machine Tools*p * Gauges, Measuring Internal Diameters,
159, 559*
—Propellers. See Propellers ; Aeronautics*p * Pump, the Quimby, 884*
Sea Currents and Salinity, Investigatious, 499
— Power Production from Tides. See Tidal*p * Transport, Analysis of Risks, 668*p * Water, Deterioration of Ferro-Concrete Structures in, 23, 40, 73
Seam Welding Machines, Electric Resistance Type, 470*
Seaplanes. See Aeronautics
Season Cracking, Aluminium Alloys, 614, 645 — — of Brass, andc., 262*, 297*, 327* Secondary Battery. See Accumulator under
Electric ; also Motor Lorries*p * Schools and Education. See Education Seger Cones, Behaviour in Coal Gas, 560 Seismological Investigations, Report on, 499 Selenium Current Regulator, Cable Research,
213*
Self-Induction. See Electric
Semi-Portable Engine. See Engine
Sensitive Drill. See Drill under Machine
Tools
Separators, Steam, Tompkin's, 416*
Sessions House, London, Heating and Ventilat
ing Plant, 518*
Severn Tidal Power Scheme, Analysis, 424*.
See 406, 422. See LETTER, 540*p * Tunnel., Ventilating Plant, 676
Sewage Gas, Power Production from, 456*.
See 431*p * Purification, Activated Sludge Process, 86,
115
— — Aersedcon System, 186
— De-watering Sludge, 87, 115
— — Straw Filters for, 86, 114. See Erratum,
153*p * Sludge, Utilisation of, -12. See 431, 456**p * Stereophagus Pump for, 644**p * See also PARAGRAPH INDEX
Shaft, Crank. See Crankshaft
Critical Speeds, Approximate Calculations,
717**p * Propeller, Torsional Vibrations, 363*. See LETTERS, 661*p * Rotating, Relativity Contraction in, 433*p * Sinking, Portobello Power Station, 423**p * — Use of Cement Grouting, 24, 45, 77 Shale, Oil Production from, 27
Shanghai Harbour, Possibilities of Improving, 797
Shawcross, G. N. on Control in a Railway Foundry, 823*
Shear Tests. See Tests (Materials).
Sheds, Transit, Royal Albert Dock Extension, 6* Sheet Metal, Seam Welding Machines for, 470* — — Stamping, Motor Car Industry, 523* Sheffield Association of Metallurgists and
Metallurgical Chemists, Address by Sir
R. Hadfield, 607*p * Road Improvements, 738*p * Technical Education in, 607 Shell Forging, Treatise on (Review), 450*p * See also Projectiles
Sherardising Process, Protection of Iron and
Steel, 167. See 142
Shimizu-Wilson Apparatus and Cleaning Blast
Furnace Gas, 58
Ship Berthing Gear for Floating Docks, 775*.
See 720*p * " British Industry," Trade Exhibition, 446. See 377, 723, 819*p * Bunkers, Spontaneous Combustion of Coal, 892*p * Canal. See Canal ; Navigation, Inland*p * Cargo Capacity per Foot Length, 22, 31 — under Construction, Lloyd's Statistics, 108, 544*p * Cost of High Speed, 838*p * Diesel Engined. See Motor Ships ; Marine Propulsion*p * Electric Propulsion. See Marine Propulsion
Ship, Fabricated, Labour-Saving in Shipbuild-ing, 84, 112
Future Dimensions and Dock Construction, 21, 31, 38
Improved Double Bottom Construction, 72*
Lighting, Geared Turbo-Generator, for, 474*
- Sets, Steam Driven, Campbell and Isherwood, Ltd.,
416*
Mechanical Applicances for Loading and Unloading, 21, 31, 38, 52, 81. See 859, 864*, 866*
Merchant, Losses of, 576, 822
- Protection against Submarines, 787*
Model Experiments, Effect of Waves, 99. - - Experiments. See also Ship Resistance
Motor. See Motor Ships ; Marine Propulsion
Oil Fuel on, Board of Trade Rules, 372
Passenger, Decoration of, 847
Plating, Stresses due to Fluid Pressure, 368*, 405. See LETTERS, 410*, 486, 540*, 567, 612, 640, 693
Powering of (Review), 161
Propellers. See Propellers
Propulsion. See Marine Propulsion ;

Engines ; Turbines ; Propellers

Repairs, Liability for Negligence, 608
Resistance, Skin Friction, Tideman's Work,
99
- - Treatise on (Review), 161
Rudders, N. P. L. Experiments, 99
Salvage. See Salvage
Standard, Labour Saving in Building, 84, 112
Tonnage Measurement, 704
Water-Tight Subdivision of. See Water-Tight
See also Marine ; Motor Ships ; Shipping ; Steamers ; Warships ; and PARAGRAPH INDEX
Shipbuilders and Engineers, North East Coast Institution of. See North East Coast
and Engineers in Scotland, Institution of.
See Engineers
Shipbuilding, Average Size of Vessels, 321
Cost of High Speed, 838
Fabricated Ships and Labour Saving, 84, 112
Future Dimensions of Ships, 21, 31, 38
Improved Double Bottom Construction, 72*
Naval. See Warships
Research and Progress in, 574
Standardisation in, 850. See 84, 112
Stresses in Plating, 368*, 405. See LETTERS, 410*, 486, 540*, 567, 612, 640, 693
System, Patent Extension Case, 447
U.S. Passenger Steamers, Design and Construction, 836, 847'!
Vessels under Construction, 108, 544
Water-Tight Subdivision. See Water-Tight
- Yards; British and Foreign, Labour Costs, 517
- - Oil and Paint Storage Plant, 632*
- - Use of Town Gas in, 479
- - Yarrow's, Closing of, 286
See also Steamers ; Naval ; Warships ; and
PARAGRAPH INDEX
Shipping Accidents, Analysis of, 668
- American Bureau. See United States
Annual, Brassey's (Review), 798
British, Pre-War and Post-War, 321
Development of Coasting Trade, 32, 109, 111
Exhibition at Olympia, 374*, 414, 435*, 470*. See 417, 481, 543.
Free Port for Christiania, 728
Hague Rules for Bills of Lading, 414
Lloyd's Register, Report, 639
Merchant, British and Foreign, Number and
Tonnage Owned, 157
- - Vessels Lost, 576, 822
Statistics, Port of London, 381
Tonnage Measurements, 704
United States, Classification and Registra
tion, 794
- States, Competition with Foreign, 794 - - States, Port Facilities and Development, 794
Shipyard. See Shipbuilding Yard
Shock Tests. See Impact Tests under Tests (Materials)
Shop Management. See Works Management Shore, Scleroscope Tests. See Hardness under Tests (Materials)
Shores, Mechanically-Operated, for Floating Docks, 775*. See 720
Shovel, Steam. See Excavating Machine Show. See Exhibition
Shrawardine Tractors, Trials, 446, 481 Shunting Locomotive, Early Turbine Driven, 728*. See 477
Siebe, Gorman and Co., Ltd., Aquatole Water Lifter, 37
Siemens-Martin Furnaces. See Furnaces Signal Posts, Concrete, 36
Silica Bricks. See Firebricks*p * and Fireclay Mixtures, Softening of, 560*p * Interferometer Tubes and Prisms, Con-struction of, 468**p * Reversible Thermal Expansion, 576*
Silicon-Aluminium-Magnesium Alloys, Con-stitution and Age Hardening, 519*. See 484, 509*p * and Iron, Heat Evolution in Combination, 478*p * Manganese, Production in Electric Furnaces,
252
Silos, Grain, at Bordeaux-Bassens, 312*. See
370*
Silting of Estuaries, Model Investigations,
121, 130
Silver, Metallurgy of (Review), 485
Simar Cultivating Machine, 36
Simons, W., and Co., Ltd., Suction Dredger, 151
Sirocco Fan, Blowing Cupolas, 834*
Skin Friction. See Ship Resistance
Skinner, F. W., on Winnipeg Water Works,
. 589*, 621*
Slabs, Calculation of Strength, 209*, 245*. See
Errata, 246, 283
Slag. See Metallurgy
Slate Dust, Utilisation of, 672
Sleeve Valve, Glasgow Oil Engine, 538*. See 37
Slipway, Ship Repairing, Liability for Acci
dents, 608
Sloog, H.,
the Late, 696
Sludge. See Sewage
Sluices, Effect on Discharge of Tidal Rivers,
121, 130
Herlandsfossen Power Plant, 497* Smelting Furnaces. See Furnaces
Smith, Dr. S. P., on Large Electric Units, 399*.
See Erratum, 538. See LETTERS, 486, 540 Smith Gas Producer for Motor Vehicles, 575.
See 580
Smith Process, Coal Carbonisation, 175*. See 68 Smith, S., and Son, Ltd., Astronomical Watch, 785
Smiths' Work, Modern Requirements, 766 Smithells, C. J., on Tungsten Filament Pheno-mena, 102
Smithfield Show, Agricultural Exhibition, 795 Smoke in City Air, Measurement of, 554*, 555*. See 12,
531, 737
Detecting Fire Alarm, 221
Smokeless Fuel, Low Temperature Car-bonisation of Coal, 29, 68, 175*, 596*. See Erratum, 110
Socialisation of Industry in Germany, 676 Societa Anonima Officini Meccaniche, Turbine Locomotive, 728*. See 477
Societies, Technical and Scientific. See Institutions
Trade. See Labour ; Industrial Notes Society of Motor Manufacturers and Traders. See Motor
Soils, Bearing Power of, 123, 132
Solar Phenomena and Magnetic Disturbances, 500
Soldiers, Blind, Employment in Workshops, 715*
Solids, Aggregation and Flow of, Sir G. Beilby's Work (Review), 878
Soot in City Air, Measurement of, 554*, 555*. See 12, 531, 737
South Africa, New Modderfontein Mine, Air Compressor for, 535*. See LETTERS, 661 - - Vaal River Barrage, Rand Water Supply, 325*
African Railways, Train Loads, 701
Kensington Museum, Report, 191
Metropolitan Gas Company, East Green-wich Works, 564
Yorkshire, Notes from, 14, 59, 105, 153, 186, 220, 252, 282, 314, 346, 376, 410, 442, 476, 508, 540, 570, 602, 633, 664, 697, 728, 760, 790, 822, 854, 886. See PARAGRAPH

INDEX - West, Notes from, 15, 59, 105, 153, 187, 221, 253, 283, 315, 347, 377, 411, 443, 477, 509, 541, 571, 603, 633, 665, 697, 729, 761, 790, 823, 855. See PARAGRAPH INDEX Spanner, Seif-Ratchetting, Fastnut, Ltd., 673* Specific Gravity, Copper-Zinc Alloys, 585*. See 449

Heat, Heat-Insulating Materials, 193
Specifications. Standard.* See Standard ; Standardisation
Spectra, Hydrogen, Long Vacuum Tubes, 434 Spectrograph, 72-in. Reflecting Telescope, 269* Spectrometer, Röntgen Ray, at N.P.L. 211 Speed-Changing Gears. See Gears ; Marine
Propulsion ; Motor-Car Details
Critical, of Shafts, Approximate Calcula
tions, 717*
- - Turbine Rotors. 1**p * Reduction Gears. See Gears ; Gearing ;
Marine Propulsion ; Motor-Car Details
Spelter Prices. See Metal-Price Diagrams
Spencer and Co., Ltd., Coal and Ash-Handling
Plant, Cordite Factory, 706*
Sphere Photometer at N.P.L., 213
Spirit, Motor. See Motor Fuels
Spontaneous Combustion, Coal in Mines, 380 ;
in Ships' Bunkers, 892
Spraying Apparatus for Fruit Trees, 795
— Metallic, Protection of Iron and Steel, 167.
See 142
Spring Bolts, Electrical Mining Apparatus, 376*p * Buckling Press, Hydraulic, Hele-Shaw System, 502**p * Helical, Chart for Designing, 173*
Sprinkling Stoker. See Stoker
Spun Vessels, Brass, Season Cracking, 262*,
299*, 329
Spur Gearing. See Gears ; Gearing ; Marine
Propulsion
St. Nazaire, Chantier et Ateliers de, S.S.
" Paris," 96*, 181*, 246*
Stability of Quay Walls, 822
Stainless Steel, High Temperature Tests and
Effect of Heat Treatment, 594*
— — and Iron, Properties of, 771*, 805*
— — Turbine Blades and Pump Rams, 592*
Stamping Hammers and Presses. See Machine
Tools*p * Sheet Metal, Motor Car Industry, 523*
Standards Association. See Engineering*p * Beams and Channels, Properties of, 712*p * Measuring Bars, Discrepancies in, 158*p * Ohm, Mercury Column, N. P. L. Measurements, 212*p * Products, National Hall Mark, 825*p * Ships. See Ships*p * Specifications, Condenser Tubes and Glands, 640 ; Creosote, 516 ; Switches and Circuit Breakers, 610 ; Tramway Axles, 475 ; Tramway Tyres, 315
Standardisation, Ball and Roller Bearings, 187*p * Fan Capacities, 567, 612*p * Fire Hose Couplings, 187*p * Lathe Type Tools, Lumsden System, 183*, 213**p * Methods of Inspecting and Testing, 84, 111. See LETTERS, 149, 248*p * in Motor Car Industry, 15, 573. See 670*p * Oils, Nomenclature and Specifications, 418*p * Plantation Rubber, 733*p in Shipbuilding, 850*p * Work of Engineering Standards Association,
236
Star Streaming, Dynamical Theory, 501
Stars, Radial Velocities, 501
Starter, Impulse, for Petrol Engines, 437**p * Motor. See Motors, Electric
Starting Device, Bristol Aero Engine, 800 Stations, Power. See Power Stations Statistics, Trade. See Trade
Steam Boats. See ,Steamers*p * Boilers. See Boilers*p * Chest, Explosion on Trawler, 711*p * Condensation. *See Condensation*p * Crane. See Crane
Engines. See Engines*p * Exhaust, Locomotive Feed Heater, Weir's, 150**p * — 'Utilisation for Power and Heating, 24, 42, 74, 141, 165*. See Errata, 153*p * Fittings Co., Ltd., Welldeck Steam Trap, 345**p * Flow through Nozzles, See Nozzles*p * Hammer. See Hammer under Machine Tools*p * Jacketted Pan, Vulcanising, Explosion of, 236*p * Jets, Boiler Furnaces, Steam Consumption, 92*p * Lorries. See Motor Lorries ; Tractors*p * Navvy. See Excavating Machine*p * Pipe Explosions, Water Hammer Action,
120, 839
— — Heat Losses from, 68*p * Properties of, Proposed Research, 320*p * Raising, Possible Fuel Economy, 29 • — — Waste Heat, in Gasworks, 24, 45, 77*p * Roller. See Road Roller*p * Separator. See Separator*p * Shovel. See Excavating Machine*p * Superheater. See Superheater ; Superheated*p * Tractors. See Tractors*p * Traps, Losses from. 69
— — Welldeck, 345* ; Record, 821**p * Trials. See Trials*p * Turbines. See Turbines*p * Users' Association. See Manchester*p * Wagons. See Motor Lorries ; Tractors Steamer " British Industry," Trade Exhibition Ship, 446. See 377, 723, 819*p * Cargo Capacity per Foot Length, 22, 31*p * Cargo, " P.L.M. 20," Cantilever Construction, 339*
— under Construction, Lloyd's Statistics, 108, 544.*p * Cost of High Speed, 838*p * Electric Propulsion. See Marine Propulsion*p * Fabricated, Labour-Saving in Shipbuilding, 84, 112
— Future Dimensions and Dock Construction, 21, 31, 38*p * Geared Turbines for. See Marine Propulsion*p * " Guilio Cesare," Propelling Machinery, 662**p * Improved Double Bottom Construction, 72**p * Mechanical Appliances for Loading and
Unloading, 21, 31, :38, 52, 81. See 859,
864*, 860*
— Merchant, British and Foreign, Number and
Tonnage Owned, 157
— — Losses of, 576, 822
— — Protection against Submarines, 787*
— — United States, Classification and Regis
tration, 794*p * Oil Fuel on, Board of Trade Rules, 372*p * Oil Fuel for, Development, 639*p * " Paris," French Atlantic Liner, 96*, 181*, 246**p * Passenger, Decoration of, 847
— — U.S., Design and Construction, 836, 847**p * Propulsion of. See Marine Propulsion ; Engines ; Turbines ; Propellers*p * Resistance of. See Ship Resistance*p * Salvage of. See Salvage.*p * " San Benito," Electrically Propelled, 481*p * Standard. See Ships, Standard*p * Stresses in Plating 368*, 405. See LETTERS, 410*,486, 540*, 567, 612, 640, 693*p * Tank, and Tonnage Owned, 157
— — Protection against Submarines, 789*
— — " San Felix," Eagle Oil Transport Line,
441**p * Tonnage Measurement, 704*p * Watertight Subdivision of. See Watertight*p * See also Engines : Marine Propulsion; Shipbuilding ; Shipping ; Ships ; Tur-bines ; Warships ; and PARAGRAPH INDEX.
Steaming in Vertical Retorts, Gas Manu-facture, 363, 560
Steamships. See Ships ; Steamers • Warships Steel Balls, Grading Machine for, 60**p * Barrels, Collapsible, with Victaulic Joint, 375**p * Billets, Rotary Piercing Machine for, 397*, 429*, 495*, 527*. See LETTERS, 612, 660*p * Case-Hardening of. See Heat Treatment under Metallurgy*p * Castings, Manufacture at E. Allen and Co.'s Works, 306*, 335**p * Cerium and Molybdenum, United States Research, 892*p * Chromium. See Steel, Stainless*p * Corrosion. See Corrosion*p * Damascene, Comparisons with High-Speed Steel, 395**p * Engineering, Properties of (Review), 386*p * Fatigue of. See Alternating Stress under Tests (Materials)*p * Foundry. See Foundry*p * Furnaces. See Furnaces*p * Heat Treatment of. See Heat Treatment under Metallurgy*p * High Speed, Comparisons with Damascene Steel, 395**p * Industry and Cost of Coal, 26*p * — United States, Labour Costs, 517*p * Liquid, Vapour from, 619, See 530*p * Manufacture. See Metallurgy*p * Manganese. See Allen, E.,
and Co., Ltd.*p * Mechanical Properties at High Temperatures, 391*, 427*. See 384*p * Microstructure of. See Microphotographs*p * Mildness and Toughness, Impact Tests, 279*p * Molybdenum, Properties of, 350. See 372*, 892*p * Plates, Hydraulic Flanging Press for, 72* — — Prices. See Metal-Price Diagrams — — Tensile Tests, Effect of Width of Specimen, 389*, 406*p * Rails. See Rails ; Metal-Price Diagrams*p * Rolling Mills. See Rolling Mills*p * Ropes. See Wire Ropes*p * Special, Etching Agent for, 570
Steel, Stainless, Properties of, 594*, 771*, 805*
— Turbine Blades and Pump Rams, 592**p * Strained, Figures produced by Etching, 809* — Stress Distribution in. See Stress ; Tests (Materials)*p * Tests of. See Tests (Materials)*p * Tool, Manufacture. See Allen, E., Co., Ltd. — — Prevention of Hardening Cracks, 517. See LETTER, 567*p * Tubes and Cylinders, Hot Drawing on Mandril, 678*. See LETTER, 693*p * Tungsten and Molybdenum, Effect of Annealing on Structure, 372**p * Uranium, Properties of, 841*p * Works. See Works
Steelwork, Structural, Beams and Channels,
Properties of, 712
— — Grain-Handling Plant, Bordeaux, 312*,
370**p * — Portobello Power Station, 422*
— — E. Allen and Co.'s Works, 272*
Stellar System, Structure and Motion of, 501 Stereophagus Pump for Sewage, 644*
Stevens, Dr. H. P., on Plantation Rubber, 733 Stevenson, D. A., on the Mid-Scotland Canal, 462. See 407
Stevenson Gear Co., Gear-Sha ping Machine, 539* Stewart, G. E., on Utilisation of Waste Heat in Gas Works, 24, 45, 77
Still Engine, Development of, 64 ; Trials, 344* Stills, Ammoniacal Liquor, Leamington Gas Works, 136*
Stokers, Automatic, Advantages of, 91
— Chain-Grate, Lea Coal Meter for, 416 Stoney, Dr. G., on Steam and Air Flow in Nozzles, 750
Stop Valves. See Valves
Storage Battery. See Accumulator under Electric ; Motor Lorries
Stourbridge Clays, Compositions, 601
Strained Steel, Figures Produced by Etching, 809*
Stratified Working, Internal-Combustion En: gines, 69*. See Erratum, 109
Straw Baling Press, Ruston and Hornsby, Ltd., 38**p * Filters, Sewage Purification, 86, 114. See
Erratum, 153
Street Lighting, Gas for, 737*p * Railways. See Tramways*p * See Roads
Strength of Materials. See Stress and Tests
(Materials)
Stress Allowances, Sydney Harbour Bridge, 880 **p * Alternating and Combined. See Tests (Materials)*p * Distribution, Complex, Report on, 408*p * Optical Determination of. See Optical Stresses, Impact, on Railway Bridges, 50, 80, 118, 189, 350, 881*p * Internal, in Brass, and Season Cracking, 262*, 297*, 327**p * in Rails, Calculation of, 431*p * in Ship's Plating, Fluid Pressure, 368*, 405. See LETTERS, 410*, 486, 540*, 567, 612, 640, 693*p * in Thick Slabs, 209*, 245*. See Errata, 246, 283*p * Two-Dimensional, Rectangular Plates, 523**p * in Webs, Plate Girders, 349
Strikes. See Labour ; Industrial Notes Stromeyer, C. E., on Feed Heating and Econo
misers, 94 ; Report on Oil Fuel, 321 Structural Design, Railway Bridges, Impact
Tests and Allowances, 50, 80, 118, 189,
150.'4681*p * Steelwork. See Steelwork Structures of Gaseous Molecules, 827*p * Ferro-Concrete. See Ferro-Concrete*p * Railway, Maintenance of, 635, 646. See 21, 30, 49.
Stuart, A. H., on Bracing Aeroplane Wings, 301* Stud Driver and Extractor, Drysdale, 312* Studs, Temple Gun for Driving, 475 Subdivision of Ships. See Watertight Submarine Boats. See Warships*p * Lifting Magnet, Neale, 311*p * Stud Driver, Temple Gun, 475
Subsidy, Coal, and Industrial Depression, 511.
See LETTERS, 567, 728
Sub-Stations, Nidd Valley Power Plant, 817**p * Rotary Converter, Automatic, Toronto
Tramways, 747*
Suction Dredger, See Dredger*p * Gas Engine. See Engine, Gas
— — Producer. See Producer
Suez Canal, Traffic on, 314, 404
Sugar, Beet, Manufacture, Kelham Factory,
639
Sulphate of Ammonia Plant, Gas Manufacture,
135*, 562
Sulphur, Recovery from Blast-Furnace Slag,
221
Sulphuric Acid Manufacture, Report on, 190
Sumner's Valveless Pumps, 58*, 416*
Sun Spots and Magnetic Disturbances, 500
Supercharging in Internal-Combustion En
gines, 69*. See Erratum, 109
Superheated Steam, Stop Valve for, Rotating
Disc Type, 472*
Superheating, Locomotives and Turbines,
Advantages of, 89
Surface Condensers. See Condensers*p * Grinding Machine. See Grinding under Machine Tools*p * Tension and Conductivity, Relationship, 530*p * — Effects, Air Lift Pumping, 460*. See 693*p * — Effects, Metals, 530, 878*p * — Measurements at Extreme Temperatures, 530
Surge Tank, Winnipeg Aqueduct, 621 Survey, Magnetic, Kursk District, Russia, 469 Surveying Instruments, Testing at N. P. L., 213*p * Map Construction from Aerial Photographs, 557**p * for Travellers (Review), 815
Sutcliffe, Speakman and Co., Ltd., Coal Briquet-ting Machine, 689*
Swaging Machine for Band Saws, 186* Sweden, Domnarf vets Iron Works, Slag Cement Manufacture, 103*p * Electric Power Supply from Norway, 259
Swift, G., dr, Sons, Ltd., Radial Drilling and Tapping Machine, 783*
Swinton, A. A. C., on Wireless Telegraphy, 636 Swiss Locomotive and Machine Works, Turbine Locomotive, 292**p * Machine Tool Works, Screw-Cutting Lathes, 652*
Switch, Push Button, Magnetic Blow-out, 101* Switches, Motor-Starting. See Motors, Electric*p * Standard Specifications, 610
Switchboards for Coal Mines, 640
Switchgear, Automatic Substation, Toronto
Tramways, 747**p * Industrial, G. Ellison's, 355*p * Mining, Relief Bolts for, 376*p * Nidd Valley Power Plant, 817*
Sydney Harbour, Proposed Bridge, 880* Sykes Gear Tooth Comparator, 103*. See 803* Symons, B. and Co., Accurate Screw Cutting,
216* ; Die Sinking Machine, 341* Synthetic Ammonia Manufacture, Claude Pro
cess, 732 .
— — Production, Statistics, 345
Systems, Shop. See Works Management
T.
TAMARACK Mining Co., Winding Engine for, 565*
Tamping Machine, Portable, Road Work, 735, 853*. See Erratum, 769
Tangent Tools, Cutter Grinder and Hand Punch, 415*
Tank, Experimental, at N. P. L., Work of, 98 — — See also Ship Resistance*p * Locomotives. See Locomotives*p * Ships, Motor. See Motor*p * Petrol, for Aircraft, Air Ministry Competition, 323, 769*p * Steamers. See Steamers
Tappet Clearance, Internal Combustion En
gines, Effect on Timing, 249*
Tapping Machine. See Machine Tools
Tar, Coal, for Road Work, 738*p * Distillation Works, Report on, 191*p * Distilling Plant, Gas Manufacture, 562*p * Macadam Mixing Machines, 735
— — for Road Construction, 120, 128 Tartaric Acid, Optical Rotatory Properties, 33 Tax, Income, Appeal Case, Machinery Imports,
259
Taxation in United States (Review), 514 Taxes, Motor Car, in Italy, 831
Technical College and Education. See Education — Engineers Society, Objects of, 481*p * Institute, Cleveland, 480*p * Societies. See Institutions and PARAGRAPH INDEX
Teddington Laboratory. See National Physical
Teeth, Gear. See Gear
Telegraphy, Wireless, Design and Practice
(Review), 160
— Direction-Finding Apparatus, 333*
— — Experimental Stations (Review), 160
— — Inductance and Capacity, Measurements,
212*
— — Modern Developments, 636
— — Negative Resistance Valves for, 584*
585*, See 409*p * — Outlines of (Review), 160*p * — Principles of Radio Communication
(Review), 814
— — Reception on Shielded Frame Aerial, 434
— — Thermionic Tubes in (Review), 321
— — Thermionic Valve, Use as Micrometer,
395*. See 469
— — Valve Characteristics, 212
— — Vibration of Ferro-Concrete Tower, 196**p * See also Electricity in PARAGRAPH INDEX Telephone Systems, Automatic (Review), 879 Telephony, Wireless, Outlines of (Review), 160 — Thermionic Tubes in (Review), 321*p * See also Electricity in PARAGRAPH INDEX Telescope, 72-in. Reflecting, for Canadian
Government, 207*, 240*, 269*. See

LETTER, 249. See also 501

Telford, J. C., on Fabricated Ships, 84, 112 Temperature Measurement, Treatise on (Review), 260
— — See also Pyrometry*p * Regulator, Samson Automatic. 307**p * Stresses, Sydney Harbour Bridge, 881 Tempering. See Heat Treatment under Metal-lurgy
Temple Gun for Driving Studs, 475 Tenders, Locomotive. See Locomotive*p * Yellow River Bridge, China, 517, 540, 567 " Tennessee " U.S. Battleship, Electric Propelling Machinery, 359*
Tensile Tests. See Tests (Materials)
Tension, Surface. See Surface Tension Ternary Alloys. See Alloys under Metallurgy Terrestrial Magnetism. See Magnetism Testing Institution, Suggested National, 825*p * Laboratory. See National Physical*p * Machine, Ferro-Concrete Floors, 11 — — Saurer Gear Wheel, 801**p * — Spur and Chain Gears, 11**p * — See also Tests (Materials)*p * See also Tests (Materials) ; Trials
Tests, Air Compressors, Belliss t Morcom,
535*. See LETTERS, 661

•* .••• Compressor, Nozzle for Measuring Delivery, 536*. See LETTERS, 611. See also 461*

— — Heaters for Boiler Furnaces, 93. See 57*, 65*p * — Lift Mine Pump, 461. See 693*p * Bar-Heating Furance, Colloidal Fuel, 124**p * Corrosion. See Corrosion*p * Chemical, Fading of Inks, 259*p * Hydraulic Turbines with Hydraucone,
Regainers, 294*
— — Turbine, the Turgo, 504**p * Impact, Railway Bridges, 50, 80, 118, 189, 350, 881*p * Laboratory, Gas Producer Fuels, 668*p * Pumping Plant, Reciprocating and Turbine Driven, 23, 42, 75. See LETTER, 279*p * Pneumatic Grain-Handling Machinery, 866. See 859
Tests (Materials) :
Abrasion Tests of Materials, 12
Alternating Shear Tests, Determination of Fatigue Ranges, 11*p * Stress Tests, Aluminium Alloys, 614 — — Tests, Effect of Scratches, 56, 81
— Tests, Nickel-Aluminium-Copper

Alloys, 454*

Bending Tests, Defective Turbine Blades, 648*. See 636*p * — Effect of Scratches, 56, 81
— — of Scots Pine, 387*. See 405
— of Sheet Metals, 192
Compression Tests, Brass at High Tem
peratures, 770*
— — Magnesium Alloy Electron, 641
Elastic Limit, Definition of, 55, 81*
— Effect of Strain, 55, 81*
Hardness Tests, Aluminium Alloys, 454*,
626. See 448
— — Bearing Metals, by Detonators, 394
— — Electrolytic Iron, Effect of Heat
Treatment, 88
— — Gun-Metal, Effect of Lead, 581*.
See 448*p * — Machines, Brinell, Proving Apparatus for, 439**p * — Magnesium Alloy Electron, 641
— — Molybdenum Steel, Effect of Heat
Treatment, 350
— — Nickel-Aluminium-Copper Alloys,
454*. See 448
— Refractory Materials at High Tem
peratures, 377
— — Rolled Zinc, 490*. See 492
— — Scleroscope, of Light Specimens,
492*. See 483
— — Stainless Steel, 594*
— Work of National Physical Labora
tory, 12
Impact Testing Work of National Phy
sical Laboratory, 10*p * Tests, Chromium Steels, 594*, 805
— — Defective Turbine Blades, 648. See
636
— — Gun-Metal, Effect of Lead, 581*.
See 448
— — Nickel-Aluminium-Copper Alloys,
454
— Stainless Steel, 594*, 805
— — Steel, Nature of Indications, 279
— — and Tensile Tests, Relationship, 279
Materials of Construction, Johnson's
Treatise on (Review), 194
Notched Bar Impact Tests. See Impact
Tests above
Scratches, Effect on Strength of Materials,
56, 81
Shear Tests, Alternating, Determination
of Fatigue Ranges, 11
Stress Determination, Optical., See

Optical

— in Materials and Structures. See Stress Tensile Tests, Aluminium Alloys, 614, 615. See 594, 624*p * — Brass, Effect of Mercury, 327* — — Chromium Steels, 594*, 805* — Effect of Scratches, 56, 81*p * — Effect of Width of Specimen, :389*,
406
— — Elastic Hysteresis, 55, 81**p * — Elastic and Plastic Extension, 55, 81*
— — Gun-Metal, Effect of Lead, 581*. See 448
— — High Temperature, Stainless Steel, 594*
— High Temperature of Steels, 391*, 427*. See 384*p * — and Impact Tests, Relationship, 279 — — Magnesium Alloy Electron, 641*p * — Molybdenum Steel, Effect of Heat Treatment, 350*p * — Nickel-Aluminium-Copper Alloys, 453*. See 448
— Rolled Zinc, 490*. See 492
Testing Machine, Bending Tests of Sheet Metals, 192
— — Hardness, Proving Apparatus for 439**p * — Transverse Tests of Timber, 388*.
See 405
— — for Golf Balls, 438*
Text Books. See LITERATURE INDEX
Textile Factory, Explosion of Yarn Drying
Cylinder, 217*p * Factories, Ventilation and Humidification, 202**p * Mills, Steam-Pipe Explosions, 102, 839 Thames Estuary, Deep-Water Quays, 822*p * Barrage, Suggested, 22, 31, 39
Thau, W. E., on Electric Ship Propulsion, 357*,
765
Thermal Conductivity, Aluminium Alloys, 613
— — Heat-Insulating Materials, 192*p * Efficiency, Heat Power Plants, Means of Improving. See Mechanical Engineers*p * Expansion, Reversible, of Silica, 576**p * Standard, Sale of Gas, 29, 546*p * Treatment, Metals. See Heat Treatment
under Metallurgy
Thermionic Valves. See Telegraphy, Wireless*p * Emission, Theory of, 432
Thermisilid Acid-Resisting Iron, 478
Thermix Air Heater, Boiler Furnaces, 57*,
92. See 65
Thermodynamics, Properties of Steam, Pro
posed Research, 320*p * Monographic Chart, Gases, Internal-Com
bustion Engines, 302*
Thermometers, Organic Liquids for, 712*p * Testing at N. P. L., 211*p * See also Pyrometers
Thermostat, Samson Valve Controlling, 307* Thomas, Dr. J. S. G., on Town's Gas, 24, 46, 78 Tho mpson, A. B., on Oilfield Waste, 670. See
8
Thom27
pson, T., Harmonic Analysis, Beam
Problems, 656*, 686*
Thompson Water Tube Boiler, Explosion, 324 Thomson, W., on Atmospheric Pollution, 554*. See 531
Thorpe, Sir E., on Problems of Science, 381
Throttle Valve. See Valve
Thrust Bearing. See Bearing*p * of Propellers. See Propellers ; Aeronautics Tidal Flow in Estuaries, Model Investigations, 121, 130*p * Power Scheme, Severn, Analysis, 424*. See 406, 422. See LETTER, 540
— — Transmission of Electrical Energy, 409 587**p * Rivers, Discharge of, Effect of Sluices and
Barrages, 121, 130
Tides, Analysis and Prediction of, 499
Timber Arch Bridges, Durability, 635, 646*p * Cargoes, Mechanical Handling, 859, 860, 861*p * Scots Pine, Mechanical Properties, 387*, 405'*p * Scottish, for Aeroplanes and Pit Props, 405*p * Strength of, Effect of Moisture, 387*. See
405
Timing Diagrams, Internal Combustion En
gines, Effect of Tappet Clearance, 249*
Timoshenko, Prof., on Stresses in Rails and
Vibrations of Bridges, 431
Tin Alloys. See Alloys under Metallurgy
— and Tinplate Prices. See Metal-Price
Diagrams
Tomlinson, G. A., on Measuring Machine for
Internal Diameters, 558*
Tompkins Steam Separators, 416*
Tools, Lathe Type, Lumsden System, 183*, 213**p * Machine. See Machine Tools*p * Making and Interchangeable Manufacture (Review), 547*p * Pneumatic. See Machine Tools*p Turning, Curved Top Rake, 213*
— Ring, Top Rake and Clearance, 95* Toothed Gearing. See Gearing ; Marine Propulsion
Toronto Tramways, Rotary Converter Sub-Station, 747*
Torpedo Attack, Protection of Merchant Ships against, 787**p * Boats and Destroyers. See Warships Torque Diagrams, Nordberg Winding Engine, 754*
Torsional Vibrations, Effect on Turbine Reductions Gears, 180. See 167, 311
— — Propeller Shafts, 363*. See LETTERS, 661 Tower, Ferro-Concrete, Vibrations of, 196**p * Travelling, Pneumatic GrainHandling Plant, Bordeaux, 370*. See 312*
Town's Gas. See Gas
Track, Railway, Repairing, Collet System, 281 Trackless Trolley System, Road Traction. See Railless
Traction, Electric. See Railways ; Railless ; Tramways*p * Engine and Road Roller, Fowler's Con
vertible, 36
Tractors, Agricultural, at Derby Show, 10, 36*
— — French Trials, 676
— Smithfield Show, 795*p * — Trials at Shrawardine, 446, 481*p * Chain Track, Grab Ditching Machine, 722**p * Oil, for Cable Ploughing, 36**p * Steam, and Road Roller, Fowler's Conver
tible, 36
Trade, British, with Canada, 672
— in China, and Foreign Office Policy,
757
— — and Cost of Production, 576*p * — Empire, Development of, 734
— Engineering, and Representation Abroad
317
— — in India, 884*p * Conditions in Austria, 256*p * Depression, Effect of Coal Subsidy, 511. See LETTERS, 667, 728*p * Directories, Omissions from, 540*p * Disputes. See Labour ; Industrial Notes*p * Electrical, and German Reparations, 829*p * Engineering, Bankruptcy Statistics, 797*p * Exhibition Ship " British Industry," 446. See 377, 723, 819
— See also Exhibition
Machinery Imports, Income Tax Appeal Case, 259
Motor Car, Development by Standardisation, 573. See 15, 670
Overseas, and British Manufacturers, 540
Reconstruction. See Reconstruction
with Roumania, 188
Unions. See Labour ; Industrial Notes Train Loads on British Railways, 765, 819, 827
— Improvement of, 701
See also Railway
Training. See Education ; Apprenticeship
Tramway Axles, Standard Specification, 475
Motors, Maag Gearing for, 805*
Rails, Damage by Brakes and Slipping Wheels, 54, 82*
Schemes in Parliament, 766
Toronto, Rotary Converter Sub-StatiOn, 747*
Track Work, E. Allen and Co., 272*
Tyres, Standard Specification, 315
See also PARAGRAPH INDEX
Transformation Points, Metals. See Metallurgy
Transit Sheds, Royal Albert Dock, 6* Transmission, Electric, Ship Propulsion. See Marine Propulsion
Gear. See Gear ; Gearing ; Marine Propulsion ; Motor Car Details
of Power. See Marine Propulsion ; Power
Transmission
Transport, Aerial. See Aeronautics*p * Canal, Proposed Reorganiiation, 156. See LETTER, 220*p * Exhibition, Agricultural Hall, 734*. See 752, 769*, 769, 853* ; Congress, 737*p * Institute of, Annual Dinner, 544 ; H. Kel-way-Bamber on Improving Train Loads, 701 ; Presidential Address by Sir H. P. Maybury on Road Development, 576 ; Sir G. Paish on the Future of British Railways, 826*p * Ministry of, and British Railways, 285
— — Railway Statistics, 764. See LETTER, 819
— — Report on Railway Accidents, 891
— — Report on Slippery Roads, 733. See 738
Transport, Motor. See Roads ; Moto
Transport Problem in Roumania, 351*p * Railway. See Railway*p * Road. See Road ; Motor ; Railless*p * Sea, Analysis of Risks, 668*p * Systems, Need for Unification, 544 Transporter Crane, Walker, Royal Albert Dock Construction, 7*
Radial, Coal-Handling, Holton Heath Cor-dite Factory, 707*
Transverse Tests. See Bending under Tests (Materials)*p * Bulkheads. See Water-Tight 'Subdivision Trap, Steam. See Steam Trap
Travellers, Scientific and General Hints (Re-view), 815
Travelling Crane. See Crane
Trawler, Explosion of Steam Chest, 711 Trench Tamping Machine, Portable, 735, 853*. See Erratum, 759
Trials, Aero Engine, Bristol Jupiter, 691. See 862*p * Agricultural Tractors. See Tractors*p * Air Compressor, Bellis and Morcom, Ltd.,
535*. See LETTERS, 661
— Compressor for Kirunavaara Mines, 675**p * Centrifugal Pump, Medium Lift, 644**p * Diesel Engine, Ansaldo-San Giorgio, 722**p * Diesel Engines, Large Cylinder, 123, 133*p * German Armour Plates, 419, 610*. See Erratum, 633*p * Motor Ship " Malta," Cammellaird-Fullagar Engines, 504*p * See also Tests
Triple-Expansion Engines. See Engines, Steam
Tritton, F. S., on Scieroscope Tests of Light
Specimens
Trolley, Trackless, Road Traction. See Railless
Tropenas Converter, Steel Foundry, Horwich
Works, 834*
Trucks, Railway, See Wagons
Tschernoff, Prof. D., the Late, 384
Tubes, Brass, Season Cracking of, 297*
Conical, Flow of Viscous Liquids through, 711
Condenser, Standard Specifications, 640
Manufacture, Rotary Billet Piercing
Machine, 397*, 429*, 495*, 527*. See

LETTERS, 612, 660*p * Mill, Ball, E. Allen and Co., 337**p * Plates, Copper, Locomotive Boilers, Re-pairing Cracks, 251*

Quartz, Interferometer, Construction, 468*
Steel, Hot Drawing on Mandril, 678*. See LETTER, 693
See also Pipes
Tungsten Lamps. See Lamps under Electric*p * Steel, Effect of Annealing on Structure, 372* — — Etching Agent for, 570
— — Prevention of Hardening Cracks, 517. See LETTER, 667
World's Output, Effect of War, 140, 165 Tunnel, Mont Cents, Jubilee, 447
Motor-Car Exhaust in, Investigations, 872
Oven, Marlow Gas-Fired; 536 ; Oilgas Oil Fired, 537
Railway, Repairs and Maintenance, 21, 30,49
River Dee, Birkenhead Water Supply, 287*p * Severn, Ventilating Plant, 676*p * Water Pressure, Herlandsfossen Power Plant, 497*
Turbines, Gas, Possibilities of, 64*p * Hydraulic, and Electric Generators, Niagara Power Plant, 296*, 403**p * — Herlandsfossen Power Plant, 633*
— Hydraucone Regainer for, 298*
Impulse, Turgo, Efficiency Tests, 504*
Large Electric Generators for, 399*. See Erratum, 538
Nidd Valley Power Plant, 817*
See also Power Plant
Mercury Vapour, and Steam Combined, 64*
Pumps. See Pumps, Centrifugal
Steam, Advantages of High Pressures and Temperatures, 64*, 89
Belluzzo, Early Shunting Locomotite, 728*. See 477
Blading for. See Blades ; Blading
and Centrifugal Pumps, Comparisons with Reciprocating Pumps, 23, 42, 74. See LETTER, 279. See also 430, 644*
Condensation in Nozzles, 750
Critical Speeds of Rotors, 1*, 717*
Geared and Centrifugal Pump, 644* — — Impulse, Bursting of Rotor Wheel, 829*
Marine, Manoeuvring Valves for, 473*
Marine, S.S. " Paris," 246*
Marine, Geared. See Marine Propulsion
and Mercury Vapour, Combined, 64*
Mixed Pressure, Oil Deposits in, 69
Sources of Loss in, 68
Utilisation of Exhaust in, 141, 165*
Zoelly, Locomotive Working, 292*
See also Turbo-Generators ; Steamers ; Warships
Turbo-Blower, Reavell's, Scavenging Two-Cycle Engines, 435*
Electric System, Ship Propulsion. See

Marine Propulsion

Exhausters for Grain Elevators, 859*, 862
Generator, 12,500 kw., Liverpool Corporation, 873*
Brush-Ljungstrom, 399*
Comparisons with Reciprocating Sets, 514 — Geared, Ship Lighting, 474*
Large Electric Units, 399*. Erratum, 538*p * Maag Reduction Gears for, 805
— Propulsion of U.S. Battleship " Ten
nessee," 359
Turgo, Hydraulic Turbine, Tests, 504*
Turning and Boring Mills. See Machine Tools*p * See Machine Tools
Turret Lathes. See Lathes under Machine Tools Twyman Method of Annealing Glassware, 854 Typewritten Documents, Permanency of, 259 Tyres, Motor Car, Boring and Turning Mill for
Moulds, 888*
Railway Wheel ; Damage by Brakes and Slipping, 54, 82* ; Lathe for, 280**p * Solid and Pneumatic, Wheel Impact on Roads, 119, 129**p * Tramway, Standard Specification, 315
u.
ULTRA-Micrometer, Recording, Thermionic
Valve Type, 395*. See 469
Underfeed Stoker Company, Ltd., Ash-Hand
ling Plant, 231*
Unemployment. See Labour
Unions, Trade. See Labour ; Industrial Notes
United Kingdom, Railways of. See Railways*p * Shipbuilding of. See Shipbuilding — Trade of. See Trade
— See also British*p * States Advisory Committee for Aeronautics, Report, 152*p * Battleship, " Maryland," Electrically-Propelled, 191
— — Battleship " Tennessee " Electric Pro-pelling Machinery, 359*
— — Bureau of Mines. Tests of Coke Breeze and Bituminous Coal for Boiler Firing, 186 ; Report on Uses for Slate Dust, 672; Report on Recovery of Unburnt Boiler Fuel, 797 ; Investigations of Motor-Car Exhaust in Tunnels, 872 ; Alloy Steel Research, 892
— — Bureau of Shipping, Work of, 794
— — California, Water Shortage, 288
— Cost of Bridge Construction, 202, 235, 267, 268
— Cost of Labour in, 517
— — Coal Mining Methods, 608
Engineering Societies, Federation of, 63
Engineers, Message to British Engineers, 19
Finance and Taxation (Review), 514
— — Motor Car Prices, 225. See LETTER, 450
— — Moving and Raising Buildings, 842*
— Navy. See United States under Warships
— — Oil Resources, 27
— — Passenger Steamers, Design and Con
struction, 836, 847*
— — Patent Office, Permanency of Type
written Documents, 259
Railways, Locomotive Design and Eco-nomical Working, 743*
Railways, Train Loads on, 701
Railways. See also Railways ; Railroads
Shipping, Competition with Foreign, 794 — — Shipping, Port Facilities and Development, 794
Vertical Lift Bridges in, 199*, 234*, 264*
— Washington Conference on Disarmament,
704, 858
— — See also America
Universal Grinding Machine. See Grinding
Machine under Machine Tools
University. See Education
Unwin, R. B., on Mapping from Aeroplane
Photographs, 557*
Upper Atmosphere. See Atmosphere
Uranium, Properties and Uses, 841
v.
VAAL River Barrage, Rand Water Supply,
325*
Vacuum Pump. See Pump
Tubes, Long, Hydrogen Spectra in, 434
See also Rontgen Rays; Telegraphy, Wireless Valency, Modern Theories of, 382, 529 Valparaiso-Santiago Railway, Electrification,
797
Valves, Control Gear for Floating Docks, 772*. See 720
Corliss, and Operating Gear, Nordberg Winding Engine, 694*
Gear, Anthony Boiler Feed Pump, 658*
Gear, Diesel Engine, Ansaldo-San Giorgio, 722*
Inlet and Discharge, for Floating Docks, 742*. See 720, 772*
Manoeuvring and Emergency, Marine Turbines, 473*
Regulating and Reducing, Oxygen Cylinders, Mine Rescue Apparatus, 569*
Samson Thermostatic Controller, 307*
Sleeve, Glasgow Oil Engine, 538*. See 37
Sluice, for Steam or Water, Clayton Valve Co., 472*
Steam, Governor, Turbo-Generator, 876*
Rotating Seat, Clayton Valve Co., 472* -- Steel Ring, High-Speed Ammonia Com-pressor, 508*
Stop, of Steam Hammer, Explosion, 537,
See Erratum, 570.
— Beardmore Quick-Acting, 759*
Superheated Steam, Rotating Disc Type, Clayton Valve Co., 472*
Thermionic. See Telegraphy, Wireless
Throttle, Nordberg Winding Engine, 694*
Timing, Internal Combustion Engines, Effect of Tappet Clearance, 249*
Unloading, for Air Compressors, 675*
Vacuum Pump, Pneumatic Grain-Handling Plant, 313*
and Valve Gear. See also Engines
Valveless Pump, Cam and Rubber Belt Type,
416* ; Cam and Rubber Tube Type, 58* Vanadium, World's Output, Effect of War,
140, 165
Vapour from Liquid Steel, 619. See 530 Variable-Speed Gear. See Gear ; Motor-Car Details
Varloy, S. A., the Late, 248
Ventilating Fan, Mine, Regainer for, 059*
Plant, London Sessions House, 518*
Plant, Severn Tunnel, 676 Ventilation of Textile Factories, 202*
Tunnel, Removal of Motor Car Exhaust, 872 Vertical Lift Bridges. See Bridges
Retorts, Carbonisation of Peat, 545
— Gas Manufacture, Steaming in 363, 560 Viaducts, Timber Arch, Durability, 635, 646
See also Bridges
Vibrations, Bridge, Investigations of, 431
Harmonic Analysis and Periodicity Measurements, 469*
Measurements, Ferro-Concrete Tower, 196*
Torsional, Effect on Turbine Reduction Gears, 180. See 167, 311 "
Propeller Shafts, 363*. See LETTERS, 661
Vice. See Machine Tools
Vickers, Ltd., Nidd Valley Power Plant, 817* Victaulic Pipe Joints, 375*
Victoria Station, London, Reconstruction of Ebury Street Bridge, 163*
— B.C., Canadian Government Observatory,
207*, 240*, 269*. 501. See LETTER, 249 Virginian Railroad, Mallet Locomotive for,745* Viscosity of Glass, Method of Investigating, 854 Viscous Liquids, Flow through Conical Tubes,
711
Volatilisation, Chemical Analysis by, 226 Voltage Regulator, Automatic, Photometer Lamps, 711
Voting, Trade Union, Validity of, 826 Vulcanising Pan, Explosion of, Report, 236
W.
WAGES. See Labour
Wagons, High Capacity, and Train Loads,
701. See 827
Motor. See Motor Lorries ; Tractors
Railway, Container Car System, 820*
Tippler, Revolving, Cordite Factory, 706* Walker, R. J., on Marine Turbine Reduction Gears, 142, 167*p * Transporter Crane, Royal Albert Dock Construction, 7*
Wall, Dr. T. F., on Power Transmission, 409, 587*
Walls, Training, River Estuaries, Comparisons, with Dredging, 121, 131*p * Quay, Stability of, 822
Wallace (Glasgow), Ltd., Oil Engine, 37, 538*.
Wallsend Slipway and Engineering Co., Ltd., Oil Fuel Installation, S.S. " Paris," 246* ; Geared Turbines for S.S. " San Felix," 441* ; Propelling Machinery, S.S. " Giulio Cesare," 662*
Walsh and Clark, Ltd., Oil Tractor for Cable Ploughing, 36*
Wanklyn, H. A., Motor Car Jack, 627* War, European. See European War
Ward and Crichton, Tompkin's Steam Separators, 416*
Warehouses, Dock, Goods Handling in, 52, 81 Warfare, Naval. See Warships*p * Poison Gases in, 382*p * Use of Aircraft in. See Aeronautics
Warming and Ventilating Plant, London Sessions House, 518*
Warner, R., and Co. (Engineers), Ltd., Boiler Feed Pump, 658* ; Feed-Water Regulator, 785*
Warner and Swasey Company, 72 in. Telescope Mounting, Canadian Government, 207*, 240*, 269*. See LETTER, 249. See also 501
Warships :
Air Supply to Boiler Rooms (Review), 110 Brassey's Naval and Shipping Annual (Review), 798
French Naval Policies, 318
German Battleship " Baden," Armour-Plate Trials, 419, 610*. See Erratum, 633
H.M. Navy, Contracts for Battle Cruisers, 605
Disarmament Proposals, 704, 858
Early Marine Engineering, 486. See 452
in Great War, History of Operations (Review), 767
New Capital Ships, 223. See 194, 605
Warships Built and Building, 194. See 223
Japanese Navy, Disarmament Proposals, 704, 858
Warships Built and Building, 195. See 223
Naval Powers, Warships Built and Building, 194. See 223
Warfare, Value of Aircraft and Sub
marines, 318
Submarines in Naval Warfare, 318
Protection of Merchant Ships, 787* Torpedo Attack, Protection of Merchant Ships against, 787*
United States Battleship, " Maryland," Electrically-Propelled, 191
Battleship " Tennessee," Electric Propelling Machinery, 359*
— — Destroyers, Turbine Blading Failures in, 615*, 647*. See 636
Navy, Disarmament Proposals, 704,
858
— — Navy, Quimby Fuel Oil Pump, 884*
Navy, Warships Built and Building,
194. See 223
Washington Conference on Disarmament,
704, 858
See also Naval in PARAGRAPH INDEX
Washing Coal, Froth Flotation and Rheola
veur Processes, 24, 45, 76
Washington Conference on Disarmament, 704,
858
Waste, Effect on Industrial Situation, 514
Heat, Utilisation in Works and Power
Plants, 24, 45, 77, 89
Watch, Astronomical, S. Smith and Son, Ltd., 785
Watches, Testing at N.P.L., 159
Water Density in Boilers, Indicator for, 57
Gas. See Gas
Hammer Action, Steam Pipe Explosions, 102, 839
Heating by Exhaust Steam, 24, 42, 74. See Errata, 153
— See also Feed-Water Heaters
Injection, Internal-Combustion Engines, 64
Level Indicators for Floating Docks, 772*, See 720
Lifter, Aquatole, Belt Type, 37, 417
Endless Rope Type, Hydrohoist, 759*
Pipes, Cast Iron, Corrosion of, 145, 168
— — Iron Bacteria and Incrustation, 457*.
See 430
Power, British Resources, Report, 828
Canadian Resources, 226, 890
Committee, Report, 639
Development, Formosa, 159
Water Power, Engineering, Treatise on (Re-view), 736
German Resources, 15
Hydraucone Regainer for Turbines, 293*
in Mineral Industry, 24, 44, 76
Need for Utilisation, 828
Plant, Nidd Valley, 718*
Plants, Scotland, Linking Up, 410. See 406
Plants, Scotland, Schemes in Parliament, 767
Research Required, 421. See 406
Resources, British Empire, 639. See 226, 828, 890
Tidal, Analysis of Severn Scheme, 424*. See 406, 422. See LETTER, 540
Tidal, Transmission of Electrical Energy,
409, 587*
World's Development, 420. See 406
See also Hydraulic ; Power Plant ;
Power, Water ; Turbine, Hydraulic
Pressure on Ships' Plating, Stresses Produced, 368*, 405. See LETTERS, 410*, 486, 540*, 567, 612, 640, 693
Separation from Oil Emulsions, 771
Shortage in California, 288
Supply, Bradford, Hydro-Electric Power Plant, 817*
— Comparisons between Reciprocating and Turbine Driven Pumps, 23, 42, 74. See LETTER, 279. See also 430, 644**p * — Corporation of Birkenhead, 286*
— Ferro-Concrete Pressure Conduits, 145, 168
— — Ground Water, Factors Affecting Flow, 256*
Iron Bacteria and Pipe Incrustation, 457*. See 430
Rainfall Distribution and Measurement, 256*
Rainfall and Run-off Ground, 146, 169, 258. 513. See Errata, 195
Rand, Vaal River Barrage, 325*
Schemes, Compensation Water, 144, 169
Schemes in Parliament, 767
Winnipeg, New Aqueduct, 589*, 621* — — Yield of Catchment Areas, 513
See also Irrigation
Surfaces, Evaporation from, 258
Tight Subdivision, Merchant Ships, Tor-pedo Attack, 787*
Subdivision, 'U.S. Passenger Steamers, 837
Tube Boiler. See Boiler
Turbines. See Turbine, Hydraulic ; Power Plant
Velocity of Air Bubbles in, 459*. See 693
Works. See Water Supply and PARAGRAPH INDEX.
Waterproofing•Concrete, Ferro-Concrete Work, 40, 73. See 23
Waterways. See Rivers ; Canals ; Navigation, Inland
Watson, G. W., on Standardisation in Motor Car Industry, 573*p * J. D., On De-Watering Sludge, 87, 115 ; on Power Gas from Sewage, 456*. See 431
Wave-Making Resistance of Ships. See Ship Resistance
Waves, Effect on Ship Propulsion, Model Experiments, 99*p * Electromagnetic. See Telegraphy, Wireless
Wayne Engineering and Equipment Company,
Electric Cable Reel, 550*
Weather. See Meteorology
Weaving Sheds, Ventilation and Humidifica
tion, 202*
Webs, Plate Girders, Stresses in, 349
Weekes, M. G., on Straw Filters for Sewage,
86, 114. See Erratum, 153
Weights, Atomic, and Isotopes, 382
Weir, G. c4L J., Ltd., Feed Heater and Pump for
Locomotives, 150*
Weir, Lord, on the Industrial Situation, 576
Welding Apparatus, Oxy-Acetylene and
Electric, Olympia, 439
Machines, Resistance, for Seams, 470*
Process, Hyde, Using Copper, 338* Welfare Work, See Labour
Wellbourn, B., on Low-Voltage Overhead Distribution, 87, 117
Welldeck Steam Trap, 345*
Wells, Oil, Improving Yield, 827. See 670 Wentworth-Sheilds, F. E., on Protecting
Reinforced Concrete, 23, 73 ; on Stability
of Quay Walls, 822
West, F. J., Presidential Address to Manchester Association of Engineers, 545
West, H. J., and Co., Ltd., Ammonia Compressor, 507*
West, J. H., on Claude Ammonia Process, 732
Westinghouse Electric and Manufacturing Co., Automatic Sub-Station, 747* ; Chilian Railway Electrification, 797 ; Electric Locomotives for Paulista Railway, 854*
Westminster, Suspended Impurities in Atmos-phere, 555*. See 12, 531, 554*, 737
Wet Conveyor System, Ash-Handling, Poplar Power Station, 231*
Wharf Cranes. See Cranes
Wharves, Construction of, Ferro-Concrete Caissons, 23, 40, 73. See Erratum, 152
Ferro-Concrete, Deterioration and Protec-tion, 23, 40, 73
Wheat Carrying Ships, Protection against Sub-marines, 787*
Wheels, Gear. See Gears ; Gearing ; Marine Propulsion
Impact on Roads, Solid and Pneumatic Tyres, 119, 129*
Railway, Damage by Slipping, 54, 82* — — Lathe for Turning, 280*
Turbine Rotor, Bursting of, 829*
Whiffen Laboratory, Imperial College, 12 Whipwater Valveless Pump, 416*. See 58* White, W. M., on Hydraucone Regainer, 293* — Lead in Paint, Case against Prohibition,
323. See LETTER, 451*p * Metal. See Alloys under Metallurgy Wilkinson, F. A. and Partners, Ltd., Wind-Driven Electric Power Plant, 282
Wills, C. J., the Late, 187
Wilson, D., on Boiler House Management, 67. See LETTER, 149
— Condensation Apparatus, Cleaning of Blast Furnace Gas, 58
Wimperis, H. E., on Internal-Combustion
Engine Theory, 63. See LETTER, 220 Winches, Cargo, Electric, at Olympia, 435*
— Oil Engine-Driven, Parsons Motor Co., Ltd.,
25*
Wind-Driven Electric Power Plant, Wilkinson System, 282
Dynamics of, 693
Loading, Sydney Harbour Bridge, 881
Tunnels. See Aeronautics.
Winding Engines, Steam, Nordberg Manufacturing Co., 565*, 628*, 694*, 752*
Mine, Steam versus Electric, 141, 166 Wings, Aeroplane. See Aeronautics
Winnipeg Water Supply, Aqueduct, 589* 621* Wire Filament Lamps. See Lamps under theetrie
Ropes, Fractures of Wires, 406, 707* — — for Vertical Lift Bridges, 200
Water Lifter, the Hydrohoist, 759*
Springs, Chart for Designing, 173*
Steel; Brittleness Produced by Pickling, 226 Wireless Telegraphy. See Telegraphy
Telephony. See Telephony
Wiremen, `on-Union, and Electrical Trades Union, 705
Wohler's Tests. See Alternating Stress under Tests (Materials).
Women's Engineering Society,. Competition,
Domestic Labour-Saving Devices, 892 Wood. E., and Co.. Ltd., Steelwork. Grain-Hand
ling Plant, Bordeaux, 312*, 370*
— Plastic, for Pattern Making, etc., 785
Wood Refuse, Suction Producer, Davey, Pax man and Co., Ltd., 8*
Woods, A. R. T., on Ship and Harbour Design and Equipment, 21, 31, 38
Woodhouse, W. B., on Power Distribution, 117, 128*
Woodworking Machinery. See Machine Tools Woolwich Arsenal, Investigations of Season Cracking, 262*, 297', 327*
Wordingham, C. H., on a National Proving House, 825

Works :

Alkali Works, Report on, 190
Allen, E., dt Co., Ltd., Steel Works and
Products, 272*, 304*, UP
Clarke's Crank and Forge Co., Ltd., Works
and Products, 777*, 811*
Coal Carbonisation, Coalite Manufacture, 596*. See 68, 110.
— — Smith Continuous Process, 175*. See 68
Domnarfvets Iron Works, Slag Cement Manufacture, 103
Engineering Works, Apprentices and Premium Pupils in, 667
in British Malaya, 823
Factories, First Aid in, 224
French Iron and Steel Works, War Damage
and Reconstruction, 383. See 418, 636
Industrial Accidents, Report on, 224
Disease. See Labour
Iron and Steel Works, Utilisation of Waste Heat, 89
Locomotive Works, Horwich, Foundry Control, 832* .
Siemens-Schuckert Works, Employment of Blind in, 715*
Steel Works, Manipulators for Heavy Forgings, 151*
Textile Factories, Ventilation and Humidification, 202*
Welfare Movement in Works. See Labour Works Management, Cost Keeping, Four-Week Period, 804
Foundry Costs and Establishment Charges, 894o
Foundry, Norwich Works, 832*
Increasing Production, Employers' Part, 150
Workers, Industrial, Health of (Review), 877 Workman, Clark it Co., Ltd., 83. " San Benito," 481
Workmen. See Labour
Workshop Training. See Apprenticeship ; Education
Worm Gearing. See Gear ; Gearing Worthington, W. B., on Railway Maintenance
and Civil Engineering Profession, 035, 040 Wreck Raising. See Salvage
Wrench, A., on Repairing Cracks in Locomotive Tube Plates, 251*
Wrought Iron. See Iron

X-rays. See Itontgen Rays
Xylonite Models for Stress Determination. See Optical

YARN Drying Cylinder, Explosion of, 217
Yarrow and Co., Ltd., Closing of Shipbuilding Yard, 286
Yarrow, H. E., on Shipbuilding Research, 574
Year Books. See LITERATURE INDEX
Yeast Extracting Machines for Breweries, 638
Yellow River Bridge, Tenders for, 517, 540, 567
York, Trolley Omnibuses at, 354
Young Engineers and the Junior Institution, 255, 733. See LETTERs, 278, 311, 346, 372
Young, II. J.. on Grey Iron Castings, 892
Younger Research Prize, 17
Ypres to Verdun, Photographs of War Areas (Review), 798
Yugo-Slavia, Mineral Resources, 823

Z.R. 2, Airship, Loss of. 320, 545. See 347,851*
Zimmer, G. F., on Coal and Ash-Handling Plant, Cordite Factory, 706*
Zinc Alloys. See Alloys under Metallurgy
Polishing and Etching for Microscope, 490*. See 484
Prices. See Metal-Price Diagrams
Rolled, Properties and Microstructure, 489* See 484
Strengthening by Compression, 711
Supplies, Effect of War, 140. See 165 Zoelly Turbine Locomotive, 292*

Grace's Guide To British Industrial History

Engineering 1921 Jul-Dec: Index: General Index

See Also

Sources of Information