Washington, DC: United States Geological Survey/USGS/Government Printing Office/GPO, 1954. First edition. Softcover. Item #43846
A report giving detailed descriptions of rocks of Mississippian, Pennsylvanian, and Permian ages, with representative sections and faunal lists of the formations concerned. 49 pages with maps, sections, bibliography and index, plus plate in the rear pocket. A near fine copy.