00745cam a22002531 4500 gs 54000226 DLC 20260227111401.0 790607s1953 inua b s000 0 eng gs 54000226 (OCoLC)5044284 DLC TxCM DLC premarc QE109 .A3 no. 6 Pickering, Ranard Jackson. An analysis of selected Indiana coals by the particle count method. Bloomington, 1953. 23 p. illus. Indiana. Geological Survey. Report of progress no. 6 Thesis (M.A.)--Indiana University. Bibliography: p. 22-23. Coal Indiana. Coal Analysis. 28874 28874