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Read at a meeting of the West. Soc. of Engrs. An illustrated description of the region, the mines, and some of the methods and machinery used. (6000 w.)
Read at a meeting of the West. Soc. of Engrs. An illustrated description of the region, the mines, and some of the methods and machinery used. (6000 w.)
Copper mining in upper Michigan
Mines Min
Jackson, J.F. (author)
1903
Article (Journal)
English
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