00842cam a22002531 4500 gs 42000044 DLC 20260227111347.0 800924s1941 ncuab s000 0 eng c gs 42000044 (OCoLC)6746759 U.S. Geol. Survey. Libr. NcCU NcCU DLC premarc TN942 .N6 553.61 North Carolina. Division of Mineral Resources. Manufacturing china clay opportunities in North Carolina. Raleigh, 1941. 24 p. illus., maps. 25 cm. North Carolina. Dept. of Conservation and Development. Bulletin no. 40 Kaolin. Clay industries North Carolina. North Carolina. Department of Conservation and Development. Bulletin no. 40. 27767 27767