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Jan 1, 1938

By R. L. Mauger, P. E. Damon, B. J. Giletti

On page 85 of the March 1965 issue of Transactions the heading of the third data column of Table II should read Ar40 Atmos %, and the first decay constant at the bottom of the Table should read ?ß.

Jan 1, 1965

University of Alaska College, Alaska Mining Society (Inactive) H. G. WILCOX, Faculty .Sponsor University of California Berkeley, California Mining Association. OLEG D. SCHERBININ. President CHARLES S. PRATT, Secrctary LESTER C. UREN, Faculty Sponsor

Jan 1, 1944

New Products Equipment

Jan 7, 1953

Jan 1, 1967

Jan 1, 1967

The following list contains the names of members of whose deaths notices have been printed in MINING AND METALLURGY during the year ending April 1, 1939. Biographical sketches published in MINING AND METALLURGY are indicated in the last two columns.

Jan 1, 1939

United Engineering Trustees, Inc James L Head, '50 E C Meagher, '52 Gail F Moulton, '53 The Engineering Foundation E R Kaiser, '54 W M Peirne, '52 E C Meagher, ex officio as Pres , LET Engineering Societies Library Board James Douglas, '52 Frank T Sisno, '50 American Standards Association Mining Standardization Correlating Committee Otto Herres, '51 H H Otto, '51 B F Tillson, '50

Jan 1, 1952

Jan 1, 1933

By Maurice Rey, Victor Formanek, Paul Chataignon

IT is found when floating oxidized lead ores by sulphidization, that the presence of calcium salts in the water, is usually detrimental and lowers the recovery. This effect is particularly marked in dry countries such as North Africa, where the waters often carry large amounts of calcium sulphate and where the ore may even contain gypsum.

Jan 11, 1950

By J. W. Pugh

VANADIUM has only recently received consideration with respect to structural applications. It would appear likely to find service where its high electrical resistance and constact temperature

Jan 1, 1958

By J. J. Spencer

IT has been found that, during any particular period of operation or in mining any particular area of the Castle Dome mine, there appears variation between mine grade and mill grade, thus Ear always in the plus direction. It would be interesting to know if this condition obtains at other properties, and, if possible, to alter the sampling methods or computations in order to get better agreement between mine and mill figures.

Jan 4, 1951

By Tom Bilson

TO recover the remaining ore tonnages along the south side of the Inspiration orebody, the company began open-pit operations in early 1948 in addition to underground mining. Due to the differences in elevation between the orebody and the existing ore handling and treating plants, the truck haulage operation is up hill. Road grades were established at 7 pct maximum.

Jan 8, 1951

By F. C. Langenberg, R. W. Lindsay

COPPER sometimes is added to steel and cast iron as an alloying element to improve or impart specific properties. However, in some steels it exerts an impurity effect in impairing response to fabrication by hot working and deep drawing. The resid-

Jan 1, 1955

[Allen-Sherman-Hoff Pump Co. Third Cover Dee Carton Brown. Advertising Allis-Chalmers Mfg. Co. 533,540 Compton Advertising, Inc. American Cyanamid Co. * James J. McMahon. Inc. American Manganese Steel Div., American Brake Shoe Co. 548, 548,549 Fuller & Smith & Ross, Inc. Anaconda Copper Mining Co. * Kenyon & Eckhardt Inc. Carlon Products Corp. 528 Penn and Hamaker, Inc. Chicago Pneumatic Tool Co. 558 G. M. Basford Co. Colorado Fuel & Iron Corp. * Doyle, Kitchen & McCormick, Inc.]

Jan 1, 1952

E O'C Acker '86 Jinzoc Adachl '88 Frederic R Abbe '97 T H Aldrich '96 Truman H Aldrich '78 Walter H Aldridge '89 Anson W Allen '87 John H Allen '84 Thomas Andrews '94 William R Appleby '90 R M Atwater, Jr '97 Lawrence Austin '82 S Ayres '73 H Foster Bain '97 David Baker '86 John Henry Banks '83 Henry C Banon '90 Thomas J Barbour '97 Alonzo F Bardwell '89

Jan 1, 1952

ASIDE-from the John Fritz Medal, in which the Institute participates through its representation on the John Fritz Medal Board, the Institute itself has four awards it may make annually, as follows: the Robert W. Hunt Medal and Prize, the J. E. Johnson, Jr., Award, the James Douglas Medal, and the William Lawrence Saunders Medal.

Jan 1, 1928