English
Book digitized by Google from the library of the University of Michigan and uploaded to the Internet Archive by user tpb. · Previously published, with an introductory and concluding chapters by Prof. Hall, as v. 1 of Hall's "Report on the Geological Survey of the State of Wisconsin"; now issued as a separate work, for distribution among friends
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Ebook · Report of a geological survey of the upper Mississippi lead region · Whitney, J. D. (Josiah Dwight), 1819-1896, Wyman, Jeffries, 1814-1874, Wisconsin. Commissioners of the Geological, Mineralogical, and Agricultural Survey · Internet Archive
Lead mines and mining · Geology · Mines and mineral resources