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Jan 1, 1946

Jan 1, 1941

Jan 1, 1942

HOWARD N. EAVENSON, Chairman C. T. HAYDEN, Vice-chairman, Bituminous Coal Production CHARLES DORRANC~ Vice-chairman, Anthracite Coal Production HOWARD P. ZELLW, Vice-chairman, Evaluation of Coal for Coke Making W. H. F'LTLWEILER, Vice- Chairman Gas and Its Manufacture 3. B. MORROW, Vice chairman, Coal Preparation

Jan 1, 1928

Jan 1, 1906

Jan 1, 1929

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Jan 1, 1938

Jan 1, 1942

Jan 1, 1940

By James R. Piper

Jan 1, 1985

By Sherwin F. Kelly

Airborne techniques enter hard rock exploration field. . . the gap between pure geophysics and engineering seen as closing rapidly.

Jan 2, 1951

By Jasper Whiting

It is well known that there is no better indication of the working of a blast-furnace than is ,given by analyses of its gases; yet although many indiviclual analyses have been made, there is, I think, no

Jan 1, 1892

CHARLES KIRCHHOFF, Chairman. ALBERT SAUVEUR, Vice-Chair-man. A. A. STEVENSON, Vice-Chair-man. HERBERT M. BOYLSTON, Secretary, Abbot Bldg., Cambridge, Mass. John Birkinbine, J. Esrey Johnson, Jr., Felix A. Vogel, William H. Blauvelt, William Kelly, Leonard Waldo, James Gayley, Richard Moldenke, William R. Walker, Henry D. Hibbard, Joseph W. Richards, William R. Webster. Henry M. Howe, E. Gybbon Spilsbury, Frederick \V. Wood. Robert W. Hunt, A. A. Stevenson is appointed an additional Vice-Chairman of the Committee. He will serve as Acting Chairman during the absence abroad of Professor Sauveur.

Jan 7, 1913

Jan 1, 1939

Jan 1, 1937

Jan 1, 1962

Jan 1, 1968

Jan 1, 1954

Jan 1, 1940

EXECUTIVE COMMITTEE OF THE BOARD OF DIRECTORS CHESTER A. FULTON, Chairman CARROLL A. GARNER H. Y. WALKER WALLACE E. PRATT FELIX E: WORMSER PAUL D. MERICA, Consultant FINANCE COMMITTEE OF THE BOARD OF DIRECTORS ERIE V. DAVELER, Chairman WILBER JUDSON RUSSELL B. PAUL HENRY KRUMB, Consultant

Jan 1, 1944