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Jan 1, 1944

Jan 1, 1940

Jan 1, 1914

Jan 1, 1917

Jan 1, 1920

Jan 1, 1920

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Jan 1, 1907

Jan 1, 1944

Established as a Division February 22, 1928 J J Golden, Chairman M Tenenbaum, Past Chairman Gerhard Derge, Chairman-Elect R W Shearman, Secretary-Treasurer AIME, 29 West 39th Street New York 18, N Y

Jan 1, 1960

Jan 1, 1879

BUFFALO C E Moyer, Chairman (Buffalo, N Y ) R M Jordan, Vice-Chairman H A Morlock, Secretary CHICAGO M E Nickel, Chairman (Chicago, Ill) A M Kroner, Vice-Chairman W R McLain, Secretary-Treasurer

Jan 1, 1960

By Frank Soulé

Jan 1, 1900

Jan 1, 1913

By J. L. Carne

Careful sampling is necessary to maintain sulphide-oxide ratio of open-pit and underground ores.

Jan 6, 1951

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Jan 1, 1938

By Wm. C. Phelps, R. E. Grace

b R.c c)nduciivity of slags and glasses is of particular interest when viewed as an activated ionic flow process. The ionic conductivity, for example, has been found to obey the Easch-

Jan 1, 1958

Jan 1, 1942

PRESIDENT OF THE COUNCIL. JOHN HAYS HAMMOND NEW YORK, N. Y. (Term expires February, 1909 ) VICE-PRESIDENTS OF THE COUNCIL SAMUEL B. CHRISTY BERKELEY, CAL. JOHN A. CHURCH NEW YORK, N.Y. PERSIFOR FRAZER PHILADELPHIA, PA. (Term expires February, 1909 ) J. PARKE CHANNING NEW YORK, N. Y. FREDERICK W. DENTON PAINESDALE, MICH. JOHN B. FARISH New York, N. Y. (Term expires February, 1910)

Jan 1, 1910

Jan 1, 1934

Jan 1, 1908