Report on the Cretaceous area [Texas] north of the Colorado river.
By J. A. Taff. S. Leverett, assistant.
- Austin, B. C. Jones & Co., state printers, 1893.
- cover title, p. 239-354. illus., 2 fold pl., 2 fold. maps. 26 cm.
At head of title: Geological Survey of Texas. "From fourth annual report, 1892", pt. I. "This report is a continuation of the work begun in the third annual report, for 1891." cf. p. 241.