Mining and Furnacing Methods and Costs, Abbott Mine, Cog Minerals Corporation, Lake County, California
Description: Report issued by the U.S. Bureau of Mines discussing mining methods and costs from Abbott Mine in Lake County, California. As stated in the introduction, "this report summarizes past operations and describes, in detail, the geology and ore deposits; exploration and mining methods; and furnacing and condensing operations. It covers the entire operation from initial exploration to the actual production of mercury" (p. 1). This report includes maps, tables, illustrations, and photographs.
Creator: Johnson, Albin Carl & Hanson, F. D.
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