The Board of Natural Resources and Conservation of the Department of Registration and Education
Subtitle: the Illinois State geological survey in war mineral research
By: by M.M. Leighton ...
Contributors: Leighton, Morris M. (Morris Morgan), 1887-1971
Series: Illinois State Geological Survey. Circular -- no. 104; Circular (Illinois State Geological Survey) -- no. 104.
Published: 1944
Place of publication: Urbana, Ill
Language: eng
Number of pages: 152
Subjects: Mines and mineral resources
Other titles: Illinois State geological survey in war mineral research.
Notes: Reprinted from the Annual report of the director, Department of registration and education for fiscal year 1942-43.