Coal resources of district I (Longwall)
By: by Gilbert H. Cady
Series: Cooperative mining series, Bulletin 10
Publisher: Printed by authority of the State of Illinois
Published: 1915
Place of publication: Urbana, Ill
Language: eng
Number of pages: 149
Subjects: Coal mines and mining
Notes: 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.