01025cam a22002651 4500 gs 50000086 DLC 20260227111356.0 780307s1950 dcua f000 0 eng c gs 50000086 (OCoLC)3694112 U.S. Geol. Survey. Libr. USlW OCoLC DLC QE75 .P9 no. 225 QE391.M85 J3 549.65 Jahns, Richard H. (Richard Henry), 1915- Physical characteristics of commercial sheet muscovite in the southeastern United States, by Richard H. Jahns and Forrest W. Lancaster. Washington, U.S. Govt. Print. Off., 1950. iv, 110 p. illus., map. 29 cm. Geological Survey (U.S.). Professional paper 225 Prepared under a cooperative agreement with the State of North Carolina and the Tennessee Valley Authority. "List of references": p. 106-107. Muscovite Lancaster, Forrest W., joint author 28452 28452