Washability characteristics of Illinois coal screenings,
Mitchell, David Ray, 1898-
Washability characteristics of Illinois coal screenings, by D. R. Mitchell and L. C. McCabe. - Urbana, Illinois, 1937. - 84 p. illus.
At head of title: State of Illinois. Department of Registration and Education. Division of the State Geological Survey. In cooperation with the Engineering Experiment Station, University of Illinois.
gs 38000135
Coal--Testing.
Coal--Illinois.
TN816 / .M55
Washability characteristics of Illinois coal screenings, by D. R. Mitchell and L. C. McCabe. - Urbana, Illinois, 1937. - 84 p. illus.
At head of title: State of Illinois. Department of Registration and Education. Division of the State Geological Survey. In cooperation with the Engineering Experiment Station, University of Illinois.
gs 38000135
Coal--Testing.
Coal--Illinois.
TN816 / .M55