Washington, DC: United States Geological Survey/USGS/Government Printing Office/GPO, 1936. Soft cover. Item #43317
185 pages with a listing of species included plus the geology of the marine deposits and Terrigenous deposits, and index. 122 photographic plates bound in and the required folded map in the rear pocket. Owner's name on the front cover. Short split to rear cover along the spine. A very good copy.