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Date: 2012-07-17 14:51:47Geology Geological Exploration of the Fortieth Parallel Arnold Hague Ferdinand Zirkel Samuel Franklin Emmons United States Bernhard von Cotta Petrology Geologist Science Clarence King Sierra Nevada | NATIONAL ACADEMY OF SCIENCES OP THE UNITED STATES OP AMERICAAdd to Reading ListSource URL: www.nasonline.orgDownload Document from Source WebsiteFile Size: 1,37 MBShare Document on Facebook |