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Extractive Metallurgy Division Institute of Metals Division Iron and Steel Division OFFICERS AND COMMITTEES W R Hibbard, Jr , President J C Kinnear, Jr , Past President John Chipman, Vice-President T D Jones, Treasurer R W Shearman, Secretary AIME, 29 West 39th Street New York 18, N Y

Jan 1, 1958

Executive JOHN R. SUMAN, Chairman PAUL D. MERICA, Vice-Chairman CHESTER A. FULTON W. M. PEIRCE H. Y. WALKER Finance H. T. HAMIL'T'ON, Chairman ERLE V. DAVELER HENRY KRUMB Admissions FELIX E. WORMSER, Chairman GEORGE D. BARRON, Vice-Chairman PHILIP KRAFT EDWARD MEAGHER CLYDE E. WILLIAMS

Jan 1, 1941

Jan 1, 1915

Receipts General Funds: Initiation fees : $ 4,705.00 Arrears of dues :...: 1,345.79 Current dues 40,924.78 Advanced dues 1,613.29 Sale of binding 10,367.48 Sale of advertising.: :... 7,109.98 Sale of transactions 4,085.42 Sale of special editions : 553.17 Sale of bulletins and pamphlets 2,028.22 Miscellaneous Receipts: Returned to general funds from land fund account 146.50 Interest on investments and deposits ; 353.29 Sale of pins and fobs 278.05 Library insurance cancelled..: 103.95 Sale of library books 28.70 Refund .from Madison Affl. Student Society....11.22 Miscellaneous 396.47 $74,081.31 Cash balance December 31, 1914: 6,316.90

Jan 2, 1916

Jan 1, 1917

Organization Place Date 1918 American Institute of Architects Washington, D. C. April American Iron and Steel Institute New York, N. Y. May American Institute of Chemical Engineers : Berlin, N. H. June 19-22 American Society for Testing Materials Atlantic City, N. J. June 25-28 New York Electrical Society New York, N. Y. June National Association of Stationary Engineers Cincinnati, 0. Sept. 9-13 National Exposition of Chemical Industries New York, N. Y. Sept. 23-28 American Chemical Society Cleveland, 0. Sept. National Petroleum Association Atlantic City, N.. J. Sept.

Jan 4, 1918

United Engineering Trustees, Inc C E Reistle, Jr (to Oct '55), A B Kinzel, '56, Andrew Fletcher, '57, Philip Kraft (from Oct '55 to '59) The Engineering Foundation W M Peirce, '56, A M Gaudin, '58 Engineering Societies Library Board Frank T Sisco, '58, C H Behre, Jr Engineering Societies Personnel Service Board of Directors E J Kennedy, Jr, E H Robie Advisory Committee, Milwaukee F T Agthe Special Survey Committee C M Cooley American Standards Association Mining Standards Board E R Borcherdt, '55, Otto Herres, '55, J K Richardson, '56, E W Bullard, '56, Alternate

Jan 1, 1955

By J. H. Wernick, E. E. Thomas

THE etch-pit technique for revealing dislocations in bulk samples allows one to determine dislocation densities and to study their behavior under various mechanical and thermal treatments. We have developed a chemical polish-etch for the development of etch pits on the (1100) plane of Cd which appear to

Jan 1, 1961

Data about shipments in this county are more plentiful than in most others. Canal records, although not complete, are available for 1837-1840, 1856-1857, 1859 and 1864. The census figures, and those of the reports of the Secretary of Internal Affairs, are very evidently too .low. Local consumption within the county has always been large, mainly due to the Cambria Iron Company, and other manufacturing plants, in Johnstown; here a large coke supply was made from coal directly from the mines, neither coal or coke being handled by any outside transportation agency. All available data is shown in Table 35.

Jan 1, 1942

Jan 1, 1933

AMERICAN INSTITUTE OF MINING ENGINEERS 29 West 39th Street, New York, N. Y. PROPOSAL FOR MEMBERSHIP Mr.. Address Member is hereby proposed by the undersigned, as a Associate Junior Member .of the American Institute of Mining Engineers. Signatures of three Members or Associates. Place of birth, Year of birth_ Education, when, where and how acquired, with degrees, if any. A technical education is not requisite for membership. Data Please give record of experience on following page with dates; for example, in the form used by "Who's Who In America" and similar publications.

Jan 10, 1917

YEAR or ELECTION 1913. FRANK DAWSON ADAMS Montreal, Canada. 1933. KARL EILERS New York, N. Y. 1922. FEDERICO GIOLITTI Q. Torino,Italy. 1906. SIR ROBERT A. HADFIELD London, England. 1921. FRANK WILLIAM HARBORD London, England. 1917. HERBERT HOOVER New York, N. Y. 1931. WALDEMAR LINDGREN Cambridge, Mass. 1921. C. MCDERMID London, England. 1913. EZEQUIEL ORDOAEZ Mexico City, Mexico 1935. ROBERT PEELE New York, N. Y. 1938. A. M. PORTEVIN Paris, France. 1937. Joan V. W. REYNDERS New York, N. Y. 1937. GEORGE S. RICE Washington, D. C. 1911. ROBERT H. RICHARDS Cambridge, Mass. 1934. T. A. RICKARD Victoria, B.C., Canada. 1933 Cambridge, Mass.

Jan 1, 1938

By A. M. Strauss

This contribution illustrates the application of the theory of period doubling to the description of the formation of microcracks in rocks. The fundamental mathematics is described and a method of prediction is proposed. The invariance (universal constants) of a generic microfracturing (damage) process is described. Finally, the method is presented as a deterministic method of predicting the failure of an engineering material while keeping track of the amount of damage that has occured at any point.

Jan 1, 1984

(Members are urged to send in for this column any notes of interest concerning themselves or their fellow-members.) Members who registered at Institute headquarters during June: Ralph H. Sweetser, Columbus, Ohio. O. M. Bilharz, Rivermines, Mo. Etienne A. Ritter, Colorado Springs. Colo. Joseph A. Holmes, Washington, D. C. Dwight E. Woodbridge, Duluth, Minn. Francis Church Lincoln, Urbana, III. Arthur Chippendale, Mexico City, Mex. William E. Saunders, Philadelphia, Pa. E. T. Miller, Louisville, Ky. E. P. Ross, Johnson City, Tenn. Jesse Scobey, Denver, Colo. H. M. Boylston, Cambridge, Mass. Charles Rhodes, Auckland, N. Z. Edward Keller, Perth Amboy, N. J. John W. Finch, Denver, Colo. F. G. Cottrell, San Francisco, Cal.

Jan 7, 1913

Jan 1, 1914

"Acta Metallurgica" William C Ellis, Dec '57 Alfred Noble Joint Prize Committee Same as Rossiter W Raymond Award Committee AIME American Association for the Advancement of Science 0 B J Fraser, Dec '57, J T MacKenzie, Dec '58 American Geological Institute H A Meyerhoff, Oct '57, Charles F Park, Oct '58 Committee on Government Relations J L Gillson, '56 American Power Conference M Tenenbaum, '57 American Standards Association Mining Standards Board E R Borcherdt, Jan '57, Otto Herres, '57, J K Richardson, Dec '56, Alternate E W Bullard

Jan 1, 1957

By Luther M. Krupp

A 3 ½ -mile asphalt mixed mat haulage road joins American Smelting & Refining Co.'s El Tiro copper pit northwest of Tucson and its Silver Bell mill. Two-axle trucks operate continuously over the road- way but the asphalt top shows none of the wash- board wear usually seen on dirt haulage roads during use by heavy vehicles. The following data cover construction of this road, and results of its use by Asarco and Isbell Construction Co., the road's builder.

Jan 11, 1958

June 4-14, Mechanical Handling Exhibition and Convention, Olympia, London. June 6, AIME, Columbia Section, dinner meeting, Spokane Hotel, Spokane. June 16-10, ASME, semiannual meeting, Sheraton-Gibson Hotel, Cincinnati. June 16-20, American Eiectropiaters Society, Industrial Finishing Exposition. International Amphitheater, Chicago. June 20-21, AIME, Central Appalachian Section, West Virginia Coal Mining Institute, Pritchard Hotel, Huntington, W. Va. June 22-24, Alloy Casting Institute, annual meeting, Homestead, Hot Springs, Va. June 23-27, ASTM, 50th anniversary meeting, Hotel Statler, New York. June 24-28, Industrial Physics Conference, Royal Technical College, Glasgow, Scotland.

Jan 1, 1952

Jan 1, 1939

By SME

"Comparison of Secondary Fe-Mn Oxides in Fracture Coating and Heavy-Mineral Concentrates as Sampling Media, Silver City Mining Region, New Mexico," a technical paper, appeared in the Aug. 1983 issue of the magazine. In Table 1, page 1182, the correct sequence of the first five metals in column 1 (Elements) should read: Zn, Pb, Cu, Fe, and Mn under "Central District" and Zn, Fe, Pb, Cu, and Mn under "Pinos Altos District." The published table shows the sequences transposed under the opposite districts. All other columns and sequences read correctly.

Jan 1, 1984