. The copper-bearing rocks of lake Superior / by Roland Duer Irving. Geology; Geology; Copper ores; Copper ores. Ordi^CL-ri^ liffkt. Scale fii/xia-n-ieieri'. 7ioit. JJiaha'Se. from TieriTi sTiore of lake Stcper-zoT, Spin ^ock Jiiy-er, Minn. 7^ lzj>^t. (fca^-/^ t^i'urte^rt Lahracloriiefyj I'tT, sntalZ icuin^ar- cnysi^ a-rranpe^ nt a. common diTecizon ; OMffi^e liJ tniar^e. areas tricitcc/- (nf ma-nif p?a^zoc7ase!j maone^z^ielSJ z-niTie. xyi^e-rfp^cst of ihe. Please note that these images are extracted from scanned page images that may have been digitall

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. The copper-bearing rocks of lake Superior / by Roland Duer Irving. Geology; Geology; Copper ores; Copper ores. Ordi^CL-ri^ liffkt. Scale fii/xia-n-ieieri'. 7ioit. JJiaha'Se. from TieriTi sTiore of lake Stcper-zoT, Spin ^ock Jiiy-er, Minn. 7^ lzj>^t. (fca^-/^ t^i'urte^rt Lahracloriiefyj I'tT, sntalZ icuin^ar- cnysi^ a-rranpe^ nt a. common diTecizon ; OMffi^e liJ tniar^e. areas tricitcc/- (nf ma-nif p?a^zoc7ase!j maone^z^ielSJ z-niTie. xyi^e-rfp^cst of ihe. 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