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Jan 1, 1946

Jan 1, 1931

PROF RICHARD ÅKERMAN Stockholm, Sweden DR. FRANK DAWSON ADAMS Montreal, Canada PROF RICHARD BECK Friberg, Germany ANDREW CARNEGIR New York, N.Y. DR. JAMES DOUGLAS New York, N.Y. PROF HATON DE LA GOUPILLIERE Paris, France SIR ROBERT A. HADFEILD London, England PROF HANS HOFFER Leoben, Austria JAMES FURMAN HOEFER Leoben, England PROF HENRI LOUIS LE CHATELIER Paris France

Jan 1, 1917

Jan 1, 1931

By H. H. Reamer, B. H. Sage, J. S. Billheimer

Jan 1, 1949

New Products Equipment

Jan 4, 1953

By Cheri Eby, William R. Eby

This paper describes the state-of-the-art of pneumatic transport systems that are capable of conveyinq waste cuttings generated by raise drills during shaft construction projects. Additionaly other examples of applications pertaining to pneumatic transport systems qualified to convey abrasive and nonabrasive materials (&., gravel, shale, coal, ore, and limestone) will be presented.

Jan 1, 1982

Jan 1, 1929

Jan 1, 1946

Jan 1, 1934

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

Jan 1, 1917

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Jan 1, 1938

Geological Survey of the State of Maine, Orono, Me. Joseph Conrad Twinem, State Geologist In the years 1837, 1838, 1839, Charles T. Jackson made three reports on the geology of Maine Reports were made in 1861-1862 by C. H Hitchcock entitled, respectively, "General Report on the Geology of Maine" and "Geology of Maine." These old reports are now out of print

Jan 1, 1933

Jan 1, 1907

Jan 1, 1956

[Allen-Sherman-Hoff Pump Co. Third Cover Dee Carlton Brown, Advertising Allis-Chalmers Mfg. Co. 822, 831, 840 Compton Advertising, Inc. American Cyanamid Co. * James J. McMahon, Inc. American Manganese Steel Div., American Broke Shoe Co. 839 Fuller & Smith & Ross, Inc. Anaconda Copper Mining Co. * Kenyon & Eckhardt Inc. Carton Products Corp. * Penn and Hamaker, Inc. Chester Cable Corp. * George Homer Martin Associates]

Jan 1, 1952

Jan 1, 1952

Jan 1, 1958