97 pages, 21 pages, 2 unnumbered leaves of plates (1 folded) : illustrations, map ; 23 cm
OCLC
ocm03924134
Errata sheet laid in.
On cover: pt. 1, A report of progress, by Warren K. Moorehead. pt. 2. Some geological aspects, by Morris M. Leighton.
Includes bibliographical references.
pt. 1. A report of progress on the exploration of the Cahokia group / by Warren K. Moorehead -- pt. 2. The geological aspects of some of the Cahokia (Illinois) mounds / by Morris M. Leighton