Anvil rock sandstone and channel cutouts of Herrin (no. 6) coal in west-central Illinois
By: [by] Paul Edwin Potter [and] J. A. Simon.
Contributors: Simon, Jack Aaron, joint author.
Published: 1961
Place of publication: Urbana
Language: eng
Number of pages: 12
Subjects: Sandstone -- Illinois.; Coal -- Illinois.
Notes: Bibliography: p. 11-12.
Cover title.
Part of the illustrative matter fold. in pocket.