Modern concepts of clay materials, by Ralph E. Grim. Printed by authority of the state of Illinois.
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TextPublication details: Urbana, Illinois, 1942.Description: 225-275 p. illusSubject(s): LOC classification: - QE471 .G73
At head of title: State of Illinois, Dwight H. Green, Governor. Department of Registration and Education, Frank G. Thompson, Director. Division of the State Geological Survey, M. M. Leighton, Chief, Urbana.
"Reprinted from the Journal of Geology, vol. I, no. 3, April-May, 1942."
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