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  • AIME
    Improved Outlook for Gold and Silver

    By Scott, Turner

    IN 1933, the monetary metals were produced in a ratio of 6.7 oz. of silver to 1 oz. of gold, the lowest relatively for silver since the period from 1851 to 1865. At the beginning of that period, the v

    Jan 1, 1934

  • AIME
    Zinc used for Money in Belgium and France

    By George C. Stone

    WHEN George C. Stone, a Director of the Institute, and so well known to our Members in connection with the Institute's many activities was abroad in 1.919, he secured an interesting collection of

    Jan 1, 1920

  • AIME
    Progress in Furnace Refractories

    By John D. Sullivan

    A DISCUSSION of the developments of the past decade in the field of refractories, and the effect of these developments on the performance and life of open-hearth furnaces, is perhaps best introduced b

    Jan 1, 1936

  • AIME
    Mining In Nicaragua.

    By T. Lane Carter

    (Canal Zone Meeting , October , 1910.) INTRODUCTION. IT is a curious fact that while in our Transactions there are papers dealing with mining-districts in all parts of the world, in Europe, Asia, Af

    Dec 1, 1910

  • AIME
    Surveying And Sampling Diamond-Drill Holes.

    By E. E. White

    (Cleveland Meeting, October, 1912.) IN, August, 1911, I read a paper before the Lake Superior Mining Institute' on surveying and sampling diamond-drill holes. The present paper gives a more thor

    Nov 1, 1912

  • AIME
    Ventilating-System at the Comstock Mines. Nevada

    By George J. Young

    DR . JOHN A . CHURCH, in his treatise on the Comstock Locle 1 gave a full and clear account of the conditions of the mine during the period of greatest activity. The difficulties in the way of deep mi

    Nov 1, 1909

  • AIME
    73. Bishop Tungsten District, California

    By Raymond F. Gray, Victor J. Hoffman, Richard J. Bagan, Harold L. McKinley

    The first indication of tungsten in the Bishop area was the discovery of scheelite concentrations in a gold placer operation in the ( since named) Tungsten Hills in 1913. After early intermittent prod

    Jan 1, 1968

  • AIME
    Computing Mechanical Classifier Efficiency

    By A. J. Weinig

    IN the accompanying figure consider the classified AB in closed circuit with a ball mill, wherein T = Tonnage of new feed C = Ratio of circulating load Now consider that the circulating load is mad

    Jan 1, 1934

  • AIME
    Ore Reduction ? Copper and Lead Smelting and Lead Refining

    By W. W. Fowler

    ORIGINALLY designed for copper smelting only, the reduction works of the Cerro de Pasco Copper Corp. have been expanded over the years until now twelve different metals are produced, together with som

    Jan 1, 1945

  • AIME
    The Zinc-Smelting Industry of the Middle West

    By H. C. Meister

    THE zinc-smelting industry of the United States has grown very rapidly in recent years and bids fair to outrival that of all other countries in the future. On account of the geographical situation of

    Jan 1, 1905

  • AIME
    Technical Papers and Discussions - Physical Metallurgy - Young's Modulus-Its Metallurgical Aspects (Metals Tech., Dec. 1945, T. P. 1936, with discussion)

    By David J. Mack

    A survey and critical appraisal of published information about Young's modulus was originally made by the writer because of a complete lack of information about this very important quantity in wo

    Jan 1, 1946

  • AIME
    Position of Silver under the Pittman Act

    By Cornelius F. Kelley

    DURING the war, events moved with unprecedented rapidity. Situations, industrial, economic and financial, arose over night that stressed to the uttermost the ingenuity and ability of those who dealt w

    Jan 1, 1921

  • AIME
    The Smelting Of Copper 'ores In The Electric Furnace.

    By Dorsey Lyon

    I. INTRODUCTION. In presenting, this paper the writers wish to call attention first of all to the fact that the electric furnace was not developed as a competitor of the combustion furnace, but: 1.

    Jan 8, 1913

  • AIME
    Rare Metals Becoming More Common

    By Paul M. Tyler, Colin G. Fink

    THE field of rare metals is so broad that progress can be reported upon many important fronts. Not satisfied with the 92 elements that Mendeleeff and his followers have accepted as legitimate, scient

    Jan 1, 1935

  • AIME
    Present Problems in the Training of Mining Engineers

    By DR. SAMUEL B. CHRISTY

    ? THE man is always greater than his work.? The training of the men who are to develop the mineral resources of the world is the most important problem connected with mining engineering. It becomes ev

    Sep 1, 1905

  • AIME
    Notes On Ruffs Carbon-Iron Equilibrium Diagram.

    By Henry M. Howe

    (Cleveland Meeting, October, 1912.) Manuscript received Aug. 20, 1912. PROFESSOR RUFF'S most illuminating paper' describing his extremely valuable investigation of the carbon-iron equilib

    Nov 1, 1912

  • AIME
    The Gay-lussac Method Of Silver Determination.

    By Frederic Dewey

    (New York Meeting, February, 1913) This old and well-known method of determining, silver is, in bullion work, so far superior to the furnace-assay that it is looked upon with reverential awe by many,

    Jan 4, 1913

  • AIME
    The Clinton Iron-Ore Deposits In Alabama.

    By ERNEST F. . SURCEIARD

    work have been published from time to time by the Survey.' A detailed report on the Birmingham district, with maps, has been completed, and will be published within the next year." In the follow

    Nov 1, 1908

  • AIME
    Chronology of Lead-Mining in the United States

    By W. R. Ingalls

    THE following chronology presents the history of lead-mining in the United States in a brief form and is a useful reference in connection with the statistics of production 1621. Lead was mined and s

    Jan 9, 1907

  • AIME
    Government Aids to the Mining Industry - Scope of Participation Should Aid Private Enterprise

    By Paul M. Tyler

    MUCH has been said in print, and much more that was unprintable, about burdensome controls, taxation, and multiplying restrictive, regulatory, or taxing activities of the Federal Government, but not s

    Jan 1, 1947