00849cam a22002651 4500 gs 31000109 DLC 20260227111335.0 720329s1931 dcu b f000 0 eng gs 31000109 (OCoLC)272425 DLC ODaWU DLC n-us-oh QE75 .B9 no. 818 Cushing, Henry Platt, 1860- Geology and mineral resources of the Cleveland district, Ohio. U.S. Govt. Print. Off., 1931. 138 p. Geological Survey (U.S.) Bulletin 818 Bibliographical footnotes. Geology Ohio Cleveland. Mines and mineral resources Ohio Cleveland. Leverett, Frank, 1859-1943, joint author. Van Horn, Frank Robertson, 1872- joint author. 26868 26868