Witold Broniewski (1880-1939)
1939 Obituary 
Professor W. Broniewski, one of the pioneers of metallography, died on January 11, 1939, as a result of suffocation from iodine vapour.
Born at Pskow, in 1880, he went first to Cracow University and then to France, in 1893, to continue his studies. He worked at Nancy under M. Guntz and published his first work here. At Paris, in the laboratory of Henry Le Chatelier, he worked out a remarkable theory on the electrical properties of aluminium alloys.
During the war he worked in a French factory, and, in 1919, fought on the eastern front.
When peace was established he devoted all his energy to the organization of a school of metallurgy at the Polytechnic School at Warsaw, only interrupting his research and teaching to serve his country as Minister of Public Works in 1926.
His work on metallography, recorded in more than a hundred original notes and memoirs, is considerable. A disciple of Le Chatelier, he raised to a high degree of perfection the methods of classical metallography : dilatation, measurement of electrical properties, &c. He then undertook an accurate compilation of the thermal, physical, and mechanical properties of a great number of alloys of iron, copper, aluminium, &c. We owe to him the discovery of certain intermetallic compounds, and the careful determination of many equilibrium diagrams.
Witold Broniewski was a man remarkable alike for the clarity of his teaching and the intense interest which he took in his pupils. To all those who were privileged to be his friends he has left the remembrance of an inflexible character and the nobility and generosity of a very great personality.
Professor Broniewski was elected a member of the Institute of Metals on January, 18,1928. —P. CHEVENARD.