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Title: The Board of Natural Resources and Conservation of the Department of Registration and Education :
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Volume: Information circular / Illinois State Geological Survey ; [no. 104]
Publisher: Urbana, Ill.,
Date: 1944.
Physical Description: p. 128-152 : ill. ; 23 cm.
Language: eng
Notes: Reprinted from the Annual report of the director, Department of registration and education for fiscal year 1942-43.
Contributor: Leighton, Morris M. 1887-1971.
Subject: Mines and mineral resources
Copyright Status: Public domain. Illinois state government document.