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Title The Hornsby district of low-sulfur Herrin coal in central Illinois (Christian, Macoupin, Montgomery, and Sangamon counties) / by W. John Nelson with contributions by Philip J. DeMaris and Robert A. Bauer.
Imprint Champaign, Ill. : Illinois State Geological Survey, 1987.


 Main Stacks  QE 105 .A45 no.540    AVAILABLE
Description 40 p. : ill., maps (some col.) ; 28 cm.
Series Circular / Illinois State Geological Survey ; 540.
Circular (Illinois State Geological Survey) ; 540.
Note Map on 1 folded leaf in pocket.
Includes errata slip.
Bibliog. Bibliography: p. 39-40.
Subject Coal -- Geology -- Illinois.
Coal -- Geology -- Christian County.
Coal -- Geology -- Macoupin County.
Coal -- Geology -- Montgomery County.
Coal -- Geology -- Sangamon County.
Other Author DeMaris, Philip J.
Bauer, Robert A., 1910-2003
Illinois State Geological Survey.