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Mining and milling of lead and zinc ores in the Wisconsin district Wisconsin
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Published Year
1910-1919 (1)
Subject
Lead mines and mining--Illinois (1)
Lead mines and mining--Iowa (1)
Lead mines and mining--Wisconsin (1)
Zinc mines and mining--Illinois (1)
Zinc mines and mining--Iowa (1) *
Zinc mines and mining--Wisconsin (1)
Author
Wright, Clarence A. (1)
