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Jan 1, 1935

New Products Equipment

Jan 4, 1951

Jan 1, 1940

[Year of Election . 1944 .WALTER HULL ALDRIDGE New York. N. Y 1944 . SELWPN GWILLYM BLAYLOCK Trail. B.C.. Canada]

Jan 1, 1946

Jan 1, 1883

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Jan 1, 1938

Jan 1, 1940

Jan 1, 1909

Jan 1, 1969

Jan 1, 1892

Jan 1, 1941

OFFICERS AND DIRECTORS (The Officers are the President, 6 Vice-Presidents, the Treasurer, and the Secretary) President and Director HENRY DEWITT SMITH' Past President and Director LEO F. REINARTZ President-elect and Director C. E REISTLE, JR

Jan 1, 1955

Jan 1, 1941

The Year Book of the Institute will be mailed with, the May Bulletin. Its membership lists, both alphabetic and geographic, are corrected to Mar. 1, and the lists of officers and committees are corrected to date.

Jan 4, 1919

Jan 1, 1969

Jan 1, 1943

OFFICERS AND DIRECTORS For the year ending February, 1932 PRESIDENT ROBERT E. TALLY JEROME, ARIZ. FREDERICK W. BRADLEY SAN FRANCISCO, CAL. WILLIAM H. BASSETT,P WATERBURY, CONN KARL EILERS NEW YORK N. Y.

Jan 1, 1929

Jan 1, 1967

By William P. Prof. Blake

THE occurrence of siderite in beds of considerable thickness in the clay formations of Martha's Vineyard, Mass., may have some economical importance, and is at least interesting in a scientific point of view.

Jan 1, 1876

Established as Mining, Geology and Geophysics Division, Sept. 27, 1949 Name changed February 19, 1958 Robert J Lacy, Chairman John G Hall, Assistant Chairman Vice-Chairmen Peter Joralemon, Membership J M Ehrhorn, Program John C Wangaard, Publications A W Ness, Secretary American Smelting & Refining Co 600 Crandall Building Salt Lake City 1, Utah

Jan 1, 1960