. Bulletin of the United States Geological and Geographical Survey of the Territories. Geology. 4. Zosmenus cinerena. 5. Trapezonotus agrestis. 6. Ischnorhynchus 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