The Yegua Problem, by H. B. Stenzel. 1938. Digital Version. The Yegua Problem, by H. B. Stenzel....
The Geology of Leon County, Texas, by H. B. Stenzel. 295 p., 61 figs., 1 plate in pocket, 1938. Digital Version. The Geology of Leon County, Texas, by...
Stratigraphic and Paleontologic Studies of the Pennsylvanian and Permian Rocks in North-Central Texas, by W. Lee, C.O. Nickell, J. S. Williams, and L. G. Henbest. 252 p., 9 figs., 11 plates in pocket, 1938. Digital Version. Stratigraphic and Paleontologic...