01187cam a22003011 4500 gs 62000212 DLC 20260227111411.0 771110s1961 iluab b 000 0 eng c gs 62000212 (OCoLC)3409767 U.S. Geol. Survey. Libr. TxCM OCoLC DLC premarc QE109 .A32 no. 22 Neavel, Richard C. Petrographic and chemical composition of Indiana coals. Bloomington : For sale by Geological Survey, Indiana Dept. of Conservation, 1961. 81 p. : illus., (part fold. in pocket) map ; 23 cm. Indiana. Geological Survey. Bulletin no. 22 Running title: Composition of Indiana coals. With : Minerals of Indiana. Bloomington : State of Indiana, Dept. of Conservation, Geological Survey, 1960. Bound together subsequent to publication. DLC Bibliography: p. 76-77. Coal Indiana. Petrology Indiana. Coal Analysis. Composition of Indiana coals. Geological Survey bulletin (Bloomington, Ind.) ; no. 22. 29630 29630