Author: HAYDEN, F.V. (et al.).:
Title: Eleventh Annual Report of the United States Geological and Geographical Survey of the Territories, embracing Idaho and Wyoming, being a Report of Progress of the Exploration for the Year 1877.
Description: Washington: Government Printing Office, 1879. 8vo. Pp. xxviii,720, several figs. of fossils on 12 tinted pls., 4 tinted lithogr. pls. of views, 62 (many fold.) pls. of sections, views, and maps, index. Orig. cloth. Very good. - Includes a large paleontological section by C.A. White: "Report on the paleontological field-work for the season of 1877" (pp. 161-272) and by the same author the article "Cretaceous fossils of the Western States and Territories" (pp. 273-320 with many figs. on 12 plates) dealing exclusively with the fossil molluscs.

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