TY - BOOK AU - Mitchell,David Ray AU - McCabe,Louis Cordell ED - Illinois State Geological Survey ED - Illinois. TI - Washability characteristics of Illinois coal screenings, AV - TN816 .M55 PY - 1937/// CY - Urbana, Illinois KW - Coal KW - Testing KW - Illinois N1 - 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 ER -