Upham, Warren. Glacial Lake Agassiz. Washington, Government Printing Office, 1895. 658 p. il. (U. S. Geological Survey, v. 25.) A description of the glacier which once covered North Dakota, and the results it had upon the surface of the State; also tells of plant and animal life in the Red River Valley.
Willard, Daniel Everett and Hall, Charles M. Casselton-Fargo Folio. Washington, Government Printing Office, 1905. 9 p. il. (U. S. Geologic Atlas of the U. S., Folio 117.)
Willard, Daniel Everett. Jamestown-Tower Folio, Jamestown, Eckelson and Tower Quadrangles. Washington, Government Printing Office, 1909. 10 p. il. (U. S. Geological Survey, Geologic Atlas of the U. S., Folio 168.)
Willard, Daniel Everett. Story of the Prairies. St. Paul, Webb Publishing Company, 1909. 265 p. il. Study of geology and physical characteristics of the State by a former professor of geology at the agricultural college.
PALEONTOLOGY
Hornaday, W. T. Tales from Nature's Wonderland. New York, Charles Scribner's Sons, 1924. o. p. 235 p. il. Paleontology written for children. Also contains stories of strange animals on earth today.
Lucas, Frederic A. Animals of the Past. New York, printed for the American Museum of Natural History, 1916. 266 p. il. 4th edit. (Handbook Series No. 4.) An account in story form of some of the creatures of the ancient world.
Williams, Henry Smith. Survival of the Fittest. New York, Robert M. McBride and Company, 1932. 231 p. il. Vivid descriptions of some of the animals which once roamed the plains of North Dakota.