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By L. L. Mohier

Mr. Vissac's study is very elaborate and complete and gives a clear idea both of phenomena occurring during operation of the feldspar jigs and results ob- tained by some of them in Europe. I have no intention of going into a complete discussion, but I would like to give a few comments about these results already

Jan 1, 1957

By H. L. Hinds, L. L. Trautman

The refining of precious metals from steel wool cathodes is completed by direct fire smelting or acid treatment of the cathodes to dissolve the steel wool followed by fire smelting. To further the refining of the cathodes, the Miller process and the Wohlwill process are used.

Jan 1, 1984

EASTERN VENEZUELA PETROLEUM Established December 15, 1954 Meets fourth Thursday each month at Chepa's Ice House in Anaco Glenn N Murchey, Chairman Jerome C Kearby, First Vice-Chairman J L Thompson, Second Vice-Chairman Thomas G Wall, Treasurer G J Clarke, Secretary Mene Grande Oil Co Apartado 3974 Caracas, Venezuela S K Wilkie, '58, Section Delegate

Jan 1, 1957

Jan 1, 1944

PRESIDENTS DAVID THOMAS 1871 R W RAYMOND 1872-1874 A L HOLLEY1875 ABRAM S HEWITT 1876 T STERRY HUNT 1877 ECKLEY B COXE 1878 - 1879 WILLIAM P SHINN 1880 WILLIAM METCALF 1881 RICHARD P ROTHWELL 1882 RICHARD W HUNT 1883

Jan 1, 1917

New Mexico School of Mmes, and State Bureau of Mmes and Mineral Resources, Socorro, N. M E. H Wells, President and Director Available publications of the State Bureau of Mines and Mineral Resources of the New Mexico School of Mines are: Bulletin 4, Fluorspar in New Mexico (1928), 60 cents; 5, Geologic

Jan 1, 1933

MINING METHODS W. J. COULTER, Chairman P. B. BUCKY, Vice-Chairman CLYDE E. WEED, Vice-Chairman ROBERT S. PALMER, Secretary Alluvial Mining CLINTON BERNARD O. B. FERRY NORMAN CLEAVELAND C. M. ROMANOWITZ R. B. EARLING J. B. STAPLER BENERE H. GRANTCHARLES THURMAN

Jan 1, 1944

Commonwealth of Virginia, Department of Labor and Industry, Rooms 313-318, State Office bldg , Richmond, Va John Hopkins Hall, Jr., Commissioner of Labor The Department of Labor and Industry publishes an Annual Report containing a review and statistics of industry in Virginia. One section is devoted to the statistics and a review of mining and quarrying during the year The latest or 34th Report (1930) will be sent to those with a particular interest in these matters

Jan 1, 1933

Executive HOWARD N EAVENSON, Chairman FREDERICK M. BECKET EDGAR RICKARD ERLE V. DAVELER WILLIAM WRAITH Finance HENRY KRUMB Chairman PAUL D. MERICA J V W REYNDERS H G MOULTON, Consultant Admissions JOHN M LOVEJOY, Chairman GEORGE D BARRON - DONALD M LIDDELL ELI T CONNER - WILLIAM W LYNCH

Jan 1, 1935

By NONE NA

[Allen -Sherman -Hoff. Pump Co Third Cover Dee Carlton Brown, Advertising Allis-Chalmers Mfg. Co 733, 750 Compton Advertising, Inc. American Cyanamid Co James J. McMahon. Inc. American Manganese Steel Div., American Brake Shoe Co 746 Fuller & Smith & Ross, Inc. Anaconda Copper Mining Co Kenyon & Eckhardt Inc. Carlon Products Corp 748 Penn and Hamaker, Inc. Chicago Pneumatic Tool Co 744, 745 G. M. Basjord Co.]

Jan 1, 1952

Jan 1, 1952

[Allen -Sherman-Hoff Pump Co Third Cover Dee Carlton Brown. Advertising Allis-Chalmers Mfg. Co 436,519 Compton Advertising, Inc. American Cyanamid Co * James J. McMahon. Inc. American Manganese Steel Div., American Brake Shoe Co 444 Fuller & Smith & Ross, Inc. Anaconda Copper Mining Co 449 Kenyon & Eckhardt Inc. Carton Products Corp. * Penn and Hamaker, Inc. Chicago Pneumatic Tool Co 431 G. M. Basford Co.]

Jan 1, 1952

Jan 1, 1935

Jan 1, 1935

Jan 1, 1935

Jan 1, 1935

For the convenience of members who may be traveling from place to place, the Secretary has compiled a list of libraries or other places In the United States and foreign countries where MINING AND METALLURGY or the Transactions may be consulted. This list will be sent to members if they so request

Jan 1, 1923

Following the declaration of a national emergency by the President on Dec. 16, 1950 the Office of Defense Mobilization was established with Charles Wilson as director. It has been obvious since the entry of Red China into the Korean War that the previous defense setup was not adequate for accelerated mobilization.

Jan 2, 1951

Jan 1, 1969

Professional Divisions I-Institute of Metals Division* GEORGE K ELLIOTT, Chairman GEORGE C STONE, Vice-chairman WILLIAM M CORSE, Secretary-treasurer Executive Committee D K CRAMPTON SAMUEL L HOYT R I, SUHL W K FRANK ZAY JEFFRIES A E WHITE H W GILLETT H C JENNISON R F WOOD STANISLAUS SKOWRONSKI II-Petroleum Division F JULIUS FOHS, Chairman EDWARD L ESTABROOK, Vice-chairman C P WATSON, Secretary-treasurer

Jan 1, 1923