Effect of preparation on ash fusibility of selected Illinois coals, by L. C. McCabe and O. W. Rees.
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TextPublication details: Urbana, Illinois, printed by authority of the state of Illinois, 1939.Description: 31 p. illusSubject(s): LOC classification: - QE105 .A25 no. 55
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At head of title: State of Illinois. Department of Registration and Education. Division of the State Geological Survey.
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