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Title: Mines producing low-sulphur coal in the central district /
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Volume: Coal Mining Investigations No.23
Creator: Cady, Gilbert H. b. 1882.
Publisher: Urbana, Ill. : State of Illinois, Dept. of Registration and Education, Division of the State Geological Survey,
Date: 1919.
Physical Description: 14 p. ; 23 cm.
Language: eng
Notes: 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.
Subject: Coal mines and mining
Coal
Coal -- Analysis.