Mining practice in district I : (Longwall) / by S. O. Andros.
Material type:
TextSeries: Illinois coal mining investigations cooperative agreement bulletin ; 5Publication details: Urbana, [Ill.] : University of Illinois, 1914.Description: 42 p. : ill. ; 23 cmSubject(s): LOC classification: - TN805.I3 A4 no. 5
Prepared under a cooperative agreement between State Geological Survey, Dept. of Mining Engineering of the University of Illinois, and U. S. Bureau of Mines.
Field work by S. O. Andros and J. J. Rutledge.
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