Preliminary report on the copper-bearing rocks of Douglas County, Wisconsin.
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TextSeries: Wisconsin. Geological and natural history survey. Bulletin Economic series ; no. VI. 2d ed.Publication details: Madison, Wis., Published by the state, 1901.Edition: 2d ed. Containing a preliminary report on the copper-bearing rocks of parts of Washburn and Bayfield counties. By Ulysses Sherman GrantDescription: vi p., 1 l., 83 p. illus., XIII pl. (incl. 5 col. maps, partly fold.) diagr. 24 cmSubject(s): LOC classification: - QE179 .A2 no. 6a
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