Coal resources of district IV
By: by Gilbert H. Cady.  Illinois mining investigations.  Printed by authority of the state of Illinois.
Contributors: Illinois State Geological Survey; Illinois. University. Engineering experiment station.; United States. Bureau of Mines.
Series: Cooperative mining series.  Bulletin 26
Published: 1921
Place of publication: Urbana, Ill
Language: eng
Number of pages: 247
Subjects: Coal mines and mining -- Illinois.
Notes: At head of title: State of Illinois.  Department of registration and education.  Division of the State geological survey.  Frank W. DeWolf, chief.
Prepared under a cooperative agreement between the Illinois State geological survey division, the Engineering experiment station of the University of Illinois, and the U. S. Bureau of mines.