Structure of parts of Northeastern Williamson and Western Saline Counties,
by Gilbert H. Cady. In cooperation with U.S. Geological Survey.
- Urbana, Ill., 1925.
- 20 p. illus., III fold. pl. (incl. fold. map) tables. 26 cm.
- Illinois. State Geological Survey. Report of investigations no. 2 .
At head of title: State of Illinois. Dept. of Registration and Education. Division of the State Geological Survey. Plates folded in pocket.