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Scientific American, Vol. 68, No. 25 (1893) (1893)
leaf 3
ittle manganese ore, is to be opened on April 26, 1894, and the accompany- The bar may be quickly and conveniently manipulated, mined in Virginia and brought to Pittsburg, and these ing engraving, issued by the official bulletin of the four and one-half pounds of material manufactured and is… … 1894. © 1893 SCIENTIFIC AMERICAN, INCInternet Archive · Public domain (published before 1931). Free to use for anything.
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