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Jan 1, 1930

Jan 1, 1920

Jan 1, 1929

[PRESIDEST ASD DIRECTOR ................................................... HARVEY S. MUDD 3. .Los Angeles, Calif.]

Jan 1, 1946

[PRESIDENT ASD DIRECTOR LOUIS S. CATES 3 .New York, N. Y. PAST PRESIDENT AND DIRECTOR CHESTER A. FULTON1 .Baltimore, Md. HARVET S. MUDD 2I Los Angeles, Calif.]

Jan 1, 1946

PRESIDENT. CHARLES F. RAND,1 NEW YORK, N. Y. PAST PRESIDENTS. CHARLES KIRCHHOFF,1 NEW YORK, N. Y. JAMES F. KEMP,2 NEW YORK, N. Y. FIRST VICE-PRESIDENT. BENJAMIN B. THAY ER,1 NEW YORK, N. Y. TREASURER. GEORGE C. STONE,1 NEW YORK, N. Y.

Jan 4, 1913

PRESIDENT. CHARLES F. RAND,1 NEW YORK, N. Y. PAST PRESIDENTS. CHARLES KIRCHHOFF,1 NEW YORK, N. Y. JAMES F. KEMP,2 NEW YORK, N. Y. FIRST VICE-PRESIDENT. BENJAMIN B. THAYER,1 NEW YORK, N. Y. TREASURER. GEORGE C. STONE,' NEW YORK, N. Y. SECRETARY EMERITUS. ROSSITER W. RAYMOND NEW YORK, N. Y. SECRETARY. BRADLEY STOUGHTON NEW YORK, N. Y.

Jan 9, 1913

PRESIDENT BENJAMIN B. THAYER,1 NEW YORK, N. Y. PAST PRESIDENTS JAMES F. KEMP,1 NEW YORK, N. Y. CHARLES F. RAND,2 NEW YORK, N. Y. FIRST VICE-PRESIDENT SIDNEY J. JENNINGS,1 NEW YORK, N. Y. TREASURER GEORGE C. STONE1 NEW YORK, N. Y. SECRETARY EMERITUS ROSSITER W. RAYMOND, NEW YORK, N. Y. SECRETARY BRADLEY STOUGHTON NEW YORK, N. Y

Jan 3, 1914

[PRESIDENT SAMUEL A. TAYLOR, . . . . District 3 . . . . PITTSBURGH, PA. PAST PRESIDENTS WILLIAM KELLY, District 5 . IRON MOUNTAIN, MICH. J. V. W. REYNDERS District 3., NEW YORK, N. Y. FIRST VICE-PRESIDENT E. DEGOLYER, NEW YORK, N. Y. TREASURER CHARLES F. RAND, NEW YORK, N. Y. SECRETARY H. FOSTER BAIN, NEW YORK, N. Y. ASSISTANT SECRETARY THOMAS T, READ, NEW YORK, N. Y.]

Jan 1, 1928

Jan 1, 1916

PRESIDENT. CHARLES F. RAND,1 NEW YORK, N. Y. PAST PRESIDENTS. CHARLES KIRCHHOFF,1 NEW YORK, N. Y. JAMES F. KEMP,2 NEW YORK, N. Y. FIRST VICE-PRESIDENT. BENJAMIN B. THAYER,1 NEW YORK, N. Y. TREASURER. GEORGE C. STONE,1 NEW YORK, N. Y. SECRETARY EMERITUS. ROSSITER W. RAYMOND, ..... NEW YORK, N. Y. SECRETARY. BRADLEY STOUGHTON, NEW YORK, N. Y.

Jan 7, 1913

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Jan 1, 1938

[PRESIDENT E. DEGOLYER, District 0 NEW YORK, N. Y. PAST PRESIDENTS J. V. W. REYNDERS, District 0 . NEW YORK, N. Y. SAMUEL A. TAYLOR, District 3 PITTSBURGH, PA. FIRST VICE-PRESIDENT GEORGE OTIS SMITH, District 4 .WASHINGTON, D. C.]

Jan 1, 1928

PRESIDENT WILLIAM L. SAUNDERS,1 NEW YORK, N. Y. PAST PRESIDENTS CHARLES F. RAID;1 NEW YORK N. Y. BENJAMIN B. THAYER,2 NEW YORK, N. Y. FIRST VICE-PRESIDENT PHILIP N. MOORE,1 ST. Louis, Mo. TREASURER GEORGE C. STONE,1 NEW YORK, N. Y. SECRETARY EMERITUS ROSSITER W. RAYMOND NEW YORK, N. Y. SECRETARY BRADLEY STOUGHTON, NEW YORK, N. Y.

Jan 3, 1915

By Freeman Bishop

The first session of the 91st term of Congress became so completely snarled up in economics and politics that no one knows how things will go in 1970 including the White House. Everything from mineral depletion allowances to tax deferments kept the Republican President and the Democratic Congress from settling their differences. But as these reconcilements approach definition, a new battleground develops around the President's authority to make trade and tariff adjustments.

Jan 1, 1970

By H. S. Munroe

The accompanying figures illustrate the dumping-device used at the new dressing works of the St. Joseph Lead Co., at Bonne Terre, Mo. It is a dumping-cradle, of a type much used abroad, in which the car is turned upside down to discharge its load. The main

Jan 1, 1889

By Gregg A. Scott

Upper Stillwater Dam is to be a roller-compacted concrete gravity structure, founded on nearly horizontally bedded sandstone and argillite rock. An overview of the testing and analyses used to evaluate the adequacy of the foundation relative to deformation, seepage, and stability is presented.

Jan 1, 1984

By Gerald Laswell

Jan 1, 1976

By C. M. Marquardt

Tramp iron and steel moving on a conveyor belt cause small currents to be generated in a coil situated in a strong magnetic field, which are converted to an alternating current and are amplified. The output voltage from the amplifier fires a thyratron with a relay in its anode circuit, which actuates a howler and simultaneously drops a spot of marker material on the belt.

Jan 6, 1950

By J. F. Stiehr, R. L. Sanford, T. L. Myers

This paper summarizes the development of a Directory of Computer Programs Applicable to US Mining Practices and Problems. The directory is funded by the US Bureau of Mines and includes a sampling of computer usage in operating and manufacturing companies, consulting firms, computer companies, research organizations, universities, and various US government agencies. General references to computer applications throughout the mining industry are discussed as well as the availability of programs to interested organizations or individuals.

Jan 9, 1979