Short papers on geologic subjects:  Some new observations on Niagaran reefs in Illinois, by Heinz A. Lowenstam; The Chouteau formation of Illinois, by Thomas C. Buschbach
Contributors: Buschbach, T. C. (Thomas Charles), 1923-; Illinois State Geological Survey
Series: Illinois State Geological Survey. Circular -- no. 183; Circular (Illinois State Geological Survey) -- no. 183.
Publisher: State of Illinois, Dept. on Registration and Education, Division of the State Geological Survey
Published: 1953
Place of publication: Urbana, Ill
Language: eng
Number of pages: 115
Subjects: Petrology; Limestone; Stratigraphic Geology; Geology
Other titles: Some new observations on Niagaran reefs in Illinois; Chouteau formation of Illinois
Notes: "Reprinted from the Transactions of the Illinois State Academy of Science, vol. 45, pp. 100-115, 1952."

Includes bibliographical references (p. 115).