Papers Read Before the Black Hills Mining Men's Association at Their Regular Monthly Meetings, on the Mining and Metallurgy of Black Hills Ores, Together With a Brief Outline of the Mining Industry of the Black Hills, and Some Statistics Relating to
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Reviews of Papers Read Before the Black Hills Mining Men's Association at Their Regular Monthly Meetings, on the Mining and Metallurgy of Black Hills Ores, Together With a Brief Outline of the Mining Industry of the Black Hills, and Some Statistics Relating to by Black Hills Mining Men'S. Association