. Bulletin of the United States Geological and Geographical Survey of the Territories. Geology. BULL U^S GF-OL SURV VOL VI â 'LATP-. Tlu* ;c1idr k Son, Liti' SKELETON OF SPEOTYTO var HYPOG^ 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 Geological and Geographical Survey of the Territories (U. S. ). Washington : Government Printing Office

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Keywords: ., bookcentury1800, bookdecade1870, booksubjectgeology, bookyear1874