. The copper-bearing rocks of lake Superior / by Roland Duer Irving. Geology; Geology; Copper ores; Copper ores. LRIOR PLV:. Very coAi'Se ] near J), ^t'jtnefo' (i/^ invel to l^iricittC' (7J; pyi'xielfj; pcAerffJ, surravndiTiy ^he, magnetw.'tt- and vyy-i^c attdi co>v- fat7iz?iy Aiaiite, scaZeJ oy a. feouiicitii-y , Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble

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. The copper-bearing rocks of lake Superior / by Roland Duer Irving. Geology; Geology; Copper ores; Copper ores. LRIOR PLV:. Very coAi'Se ] near J), ^t'jtnefo' (i/^ invel to l^iricittC' (7J; pyi'xielfj; pcAerffJ, surravndiTiy ^he, magnetw.'tt- and vyy-i^c attdi co>v- fat7iz?iy Aiaiite, scaZeJ oy a. feouiicitii-y , Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Irving, Roland Duer, 1847-1888. Washington, Govt. Print. Off.

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Keywords: ., bookcentury1800, bookdecade1880, booksubjectgeology, bookyear1883