Percentage of extractions of bituminous coal with special reference to Illinois conditions
By: by C. M. Young.
Contributors: Illinois.
Series: University of Illinois Engineering Experiment Station. Bulletin; no. 100; University of Illinois bulletin.; v. 14, no. 42
Publisher: The University of Illinois
Published: 1917
Place of publication: Urbana, Ill
Language: eng
Number of pages: 175
Subjects: Coal mines and mining.; Coal mines and mining -- Illinois.
Notes: Bibliography: p. 160-165.
Cover title.
"Illinois coal mining investigations coöperative agreement.  (This report was prepared under a coöperative agreement between the Engineering Experiment Station of the University of Illinois, the Illinois State Geological Survey, and the U.S. Bureau of Mines)"