00818cam a22002411 4500 gs 66000156 DLC 20260227111419.0 790608s1964 inuab b s000 0 eng gs 66000156 (OCoLC)5047203 DLC TxCM DLC QE109 .A32 no. 31 Harrison, Jack Lamar, 1927- Clays and shales of Indiana, by Jack L. Harrison and Haydn H. Murray. Bloomington [Indiana Geological Survey] 1964. 40 p. illus., map. "Mineralogic, ceramic, and chemical analyses of selected samples": fold. leaf, in pocket. Bibliography: p. 38-40. Clay Indiana. Shale Indiana. Murray, Haydn H. (Haydn Herbert), 1924- joint author. 30200 30200