01030cam a22002891a 4500 gs 53000074 DLC 20260227111359.0 761013s1952 ohuab b s000 0 eng gs 53000074 (OCoLC)2499207 DLC OT OCoLC O OCoLC DLC premarc n-us-oh QE151 .A183 no. 10 ONR 84.10:10 ohdocs Cady, Gilbert H. (Gilbert Haven), 1882- A program of activities and research in coal geology / by Gilbert H. Cady. Columbus : State of Ohio, Dept. of Natural Resources, Division of Geological Survey, 1952. 55 p. : ill., map ; 23 cm. Information circular ; no. 10 Includes bibliographical references (p. 55). Coal Ohio. Coal mines and mining Ohio. Ohio. Division of Geological Survey. Information circular (Ohio. Division of Geological Survey) ; no. 10. 28712 28712