Analyses of the coals of Ohio Bownocker, J. A. (John Adams) 1865-1928 creator Dean, Ethel S. (Ethel Sourbray) Ray, Franklin A. (Franklin Arnold) 1862-1938 text ohu Columbus, Ohio Geological Survey of Ohio 1929 monographic eng
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360 p. : ill., maps ; 25 cm. Ohio coal supply and its exhaustion / Frank A. Ray. by J.A. Bownocker and Ethel S. Dean. Some maps are folded. Includes index. n-us-oh Coal Ohio QE151 .A18 no. 34 ONR 84.3:34 ONR 84.3:34 Bulletin (Geological Survey of Ohio) ; no. 34 gs 30000278 DLC 730206 20260227111335.0 gs 30000278