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  • AIME
    Timbered Stopes - Mining Methods of Hecla Mining Co.

    By Charles H. Foreman, James F. McCarthy

    The orebodies of the Hecla mine are from 3 to 40 ft. wide, dip not less than 70°, and in most cases are nearly vertical. The Hecla and Intermediate orebodies are generally associated with a lamprophyr

    Jan 1, 1925

  • AIME
    Last Heard Of In Military Service

    [†ADAIR, ARTHUR C., Corp 4th Co., 1st. Training Bat., 154th Depot Brigade. ADAMS, HENRY, Major Chemical Warfare Service. ARLUCK, A. A Headquarters, 1St Corps of Artillery. ASKIN, THOMAS B. H Ensi

    Jan 1, 1925

  • AIME
    New York Paper - Coal in Relation to Coke (with Discussion)

    By Edward C. Jeffrey

    The use of coke in metallurgy, to any important degree, dates from the middle of the 18th century. Its utilization came most opportunely for European civilization. The forests of Europe, except in the

    Jan 1, 1925

  • AIME
    Reduction Of Iron Ores By Carbon Monoxide

    By Heihachi Kamura

    In this research, the proper temperature for the reduction of iron ores by carbon monoxide was determined. Also, the difference of the rate of reduction on the sizes of ore under four mesh per linear

    Jan 1, 1925

  • AIME
    Birmingham Paper - Milling Practice of American Zinc Co. of Tennessee at Mascot

    By Robert Ammon

    The milling practice at Mascot, at present, consists of dry crushing to % in., jigging, fine grinding, and flotation. The ore arrives at the mill from two mines, No. 1 mine shaft being located in the

    Jan 1, 1925

  • AIME
    Birmingham Paper - Mascot, Tennessee, Zinc Area

    By Wilbur A. Nelson

    In 1839, Gerard Troost,1 the first State Geologist of Tennessee, reported the occurrence of zinc ores in east Tennessee, in connection with the iron ores at Embreeville; in 1844,2 he refers to the zin

    Jan 1, 1925

  • AIME
    New York Paper - Microstructure of Coal

    By Clarence A. Seyler

    The technical difficulties of cutting thin sections of coal for examination by transmitted light have hitherto restricted the investigation of the important subject of the microstructure of coal to th

    Jan 1, 1925

  • AIME
    Coal Mining Methods, with Especial Reference to Improved Methods and Higher Extraction - Alabama Coal-mining Practice (with Discussion)

    By Milton H. Fies

    Although pig iron from iron ore and red cedar charcoal preceded the mining of coal by many years, for tradition says that Alabama iron was used to shoe the horses of Andrew Jackson's soldiers, co

    Jan 1, 1925

  • AIME
    New York Paper - Value of Humidifying Method in Explosion Prevention in Coal Mines (with Discussion)

    By D. Harrington

    During the past few years, there has been a trend toward the use of rock-dusting, rather than relying on humidifying, or the use of water, to limit or prevent explosions in the coal mines of the Unite

    Jan 1, 1925

  • AIME
  • AIME
    New York Paper - Comparative Study of Well Logs on the Mexia Type of Structure (with Discussion)

    By Frederic H. Lahee

    The purpose of this paper is to demonstrate the similarity of the oil-producing structures in the Mexial fault zone, and to show how the apparently very irregular well logs in these fields may be use?

    Jan 1, 1925

  • AIME
    New York Paper - Recent Developments in the Fine Grinding and Treatment of Witwatersrand Ores (with Discussion)

    By Carl R. Davis, J. L. Willey, S. E. T. Ewing

    The first tube-mill on the Rand was put into operation in May. 1904, at the Glen Deep Mine. From that time onwards, tube-mills were added to various plants, although little was known regarding the cap

    Jan 1, 1925

  • AIME
  • AIME
    Official Institute Reports For The Year 1924

    TO THE BOARD OF DIRECTORS OF THE AMERICAN INSTITUTE OF MINING AND METALLURGICAL ENGINEERS Gentlemen:-To a Board of Directors keeping in as close touch with all of the affairs under their care as d

    Jan 1, 1925

  • AIME
  • AIME
    Timbered Stopes

    The term "timbered stope" is here meant to denote stopes in which timbering is the predominant feature of the mining method. Stopes with stull sets, as in the Hecla mine, are types of timbered stopes;

    Jan 1, 1925

  • AIME
    New York Paper - Reaction between Manganese and Iron Sulfide (with Discussion)

    By O. S. True, C. H. Herty

    It is well known that manganese will desulfurize molten iron through the formation of manganese sulfide, which, being only slightly soluble in the metal, rises to and enters the slag where it remains

    Jan 1, 1925

  • AIME
    New York Paper - Reduction of Iron Ores by Carbon Monoxide (with Discussion)

    By Heihachi Kamura

    The reduction of iron oxide, such as Fe203, to iron in the blast furnace is performed principally by carbon monoxide, but partly by solid carbon by the two following reactions: Fe2O3 + 3CO = 2Fe 4-

    Jan 1, 1925

  • AIME
    New York Paper - Progressive Regional Carbonization of Coals (with Discussion)

    By David White

    Attention has been given to the sources and supply of the raw vegetal matter and the conditions of its submission to the process of sedimentation. An original and most valuable review has been made of

    Jan 1, 1925

  • AIME
    Budget For The Year 1921 - Adopted At Meeting Of Board Of Directors. Feb. 15, 1921

    [Estimated Receipts Dues: Arrears $ 3,500.00 Current 108,115.00 New Members 11,937.00 In Advance 1,763.00 $125,315.00 Initiation Fees 7,250.00 Initiation Fees-Additional if increased to $20.00

    Jan 1, 1925