Cyrus Thomas, 1825-1910
agricultural statistician and entomologist
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"The reports of Professor Thomas and Dr. Peale, which are herewith appended, will speak for themselves." --F. V. Hayden. [2]
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- "U.S. Geological Survey Photographic Library," U.S. Geological Survey Photographic Library, 1871, accessed November 21, 2012, photo by W. H. Jackson, http://libraryphoto.cr.usgs.gov/htmlorg/lpb122/land/jwh01673.jpg.
- F. V. Hayden, Preliminary Report of The United States Geological Survey of Montana and Portions of Adjacent Territories; Being A Fifth Annual Report of Progress (Washington: Government Printing Office, 1872), pg. 4.