. The copper-bearing rocks of lake Superior / by Roland Duer Irving. Geology; Geology; Copper ores; Copper ores. u-1<^ T.^o descriijo'i fiuartz is. ^Sâ ^si>'^Â»M5 Mie'iv'roD^i. ^Vj'tT S>^VÂ«>-'>5^sÂ»i ^^â ^o^s^^.'^S^\^ So^ivoVjSaeSv W"* i-0M5lÂ»''Â«^ Â«0Â»^Â«Â»t^^I> Kx's:^93'V>^ ^VV.\3ii sisi^'^^t^. 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.

. The copper-bearing rocks of lake Superior / by Roland Duer Irving. Geology; Geology; Copper ores; Copper ores. u-1<^ T.^o descriijo'i fiuartz is. ^Sâ ^si>'^Â»M5 Mie'iv'roD^i. ^Vj'tT S>^VÂ«>-'>5^sÂ»i ^^â ^o^s^^.'^S^\^ So^ivoVjSaeSv W"* i-0M5lÂ»''Â«^ Â«0Â»^Â«Â»t*^^I> Kx's:^93'V>^ ^VV.\3ii sisi^'^^t*^. 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

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