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Manganese Investigations - Metallurgical Division: 14. Hydrometallurgical Studies of Manganses Ores

Description: Report issued by the U.S. Bureau of Mines regarding laboratory tests conducted on acid leaching of manganese ore. Descriptions of the methods used in testing and results are presented. This report contains tables, and graphs.
Date: July 1942
Creator: Anderson, Clarence Travis
Partner: UNT Libraries Government Documents Department
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Investigation of Copper-Nickel Mineralization in Kawishiwi River Area, Lake County, Minnesota

Description: Report issued by the Bureau of Mines over studies conducted on the copper-nickel deposits of Lake County, Minnesota. As stated in the introduction, "this report describes the procedures and results of the drilling program as well as the metallurgical work and laboratory studies" (p. 1). This report includes tables, maps, and illustrations.
Date: November 1955
Creator: Grosh, W. A.; Pennington, J. W.; Wasson, P. A. & Cooke, S. R. B.
Partner: UNT Libraries Government Documents Department
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Magnetic Base Stations in Lake Superior Iron Districts

Description: Report issued by the U.S. Bureau of Mines on the magnetic base stations located in Minnesota, Michigan, and Wisconsin. The report evaluates the usefulness of the stations for calibration of certain instruments. This report contains tables, graphs, maps, and illustrations.
Date: September 1951
Creator: Bath, Gordon D.
Partner: UNT Libraries Government Documents Department
open access

Safety Cars of the United States Bureau of Mines

Description: Report issued by the U.S. Bureau of Mines discussing the mine stations and safety cars used to reach miners in distress. As stated in the report, "the purpose, equipment, personnel, and construction of its safety cars" is presented. This report includes an illustration, and a map.
Date: March 1931
Creator: Forbes, J. J. & Ankeny, M. J.
Partner: UNT Libraries Government Documents Department
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