00783cam a22002291 4500 gs 11000463 DLC 20260227111311.0 780502s1911 xx 000 0 eng c gs 11000463 (OCoLC)3856250 Library, U.S. Geological Survey OT DLC premarc TN942 .S7 Snider, Luther C. (Luther Crocker), 1882- Preliminary report on the clays and clay industries of Oklahoma, by L. C. Snider. Norman, 1911. xii p., 1 l., 270 p. illus., 8 pl., 2 fold. maps, fold. tab., diagrs. 24 cm. Oklahoma. Geological survey. Bulletin no. 7 Some plates printed on both sides of leaf. Clay Oklahoma. 25062 25062