01045cam a22002771 4500 gs 41000121 DLC 20260227111346.0 780708s1941 dcuabf b f000 0 eng gs 41000121 (OCoLC)4032484 DLC OClU OCoLC DLC premarc QE75 .P9 no. 198. TN490.T6 R6 Copy 2. Ross, Clarence Samuel, 1880- Occurrence and origin of the titanium deposits of Nelson and Amherst counties, Virginia, by Clarence S. Ross. Washington, U.S. Govt. Print. Off., 1941. iii, 59 p. illus. (map) 19 pl. on 10 l. 29 cm. Geological Survey (U.S.). Professional paper, 198 At head of title: United States Dept. of the Interior, Harold L. Ickes, secretary. Geological Survey. W. C. Mendenhall, director. Bibliographical footnotes. Titanium Mines and mineral resources Virginia Petrology Virginia 27729 27729