Mining American

Mining American

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The Employment of Qualified, Important Men 25 a#39;06 05 08. JOPLIN ... 1; total mining cost, 65.l5 cts. per ton. Milling ... The cost of mining and milling. including everything except depreciation, was 98 cts. per ton. ... 49.l5 cts.; explosives, 20.49; fuse. ... A box that holds about 800 pounds of ore is placed on a Fairbanks scale and its contents weighed accurately and then dumped into the Challenge feeder.

Title:Mining American
Publisher: - 1915


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