Siliceous materials of extreme southern Illinois:
silica, novaculite, ganister, calico rock, and chert gravels.

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Main Author
Lamar, J. E. (John Everts), 1897-1979.
Language(s)
English
Published
Urbana, 1953.
Subjects
Silica.
Physical Description
38 p. illus., maps. 25 cm.
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Item Link Original Source
Full view   University of Illinois at Urbana-Champaign
Full view   Report of Investigations No. 166 University of Illinois at Urbana-Champaign