Analyses of Illinois coals
By: compiled by G.W. Hawley
Contributors: University of Illinois (Urbana-Champaign campus). Engineering Experiment Station; Illinois State Geological Survey; United States. Bureau of Mines
Series: Bulletin -- no. 27a; Bulletin (Illinois State Geological Survey) -- no. 27a.
Publisher: State Geological Survey
Published: 1923
Place of publication: Urbana, Ill
Language: eng
Number of pages: 68
Subjects: Coal; Analysis
Notes: Reprinted extract from Bulletin no. 27.

"Illinois mining investigations, 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."

"Cooperative Mining Series, extract A from Bulletin No. 27."