Bascom, F. 1862-1945.

Geology and mineral resources of the Honeybrook and Phoenixville quadrangles, Pennsylvania, by F. Bascom and G.W. Stose. - Washington, U.S. Govt. Print. Off., 1938. - v, 145 p. incl. illus., tables, 11 pl. (incl. fold. map (in pocket) fold. diagr.) 23 cm. - U.S. Geological survey. Bulletin 891 .

At head of title: United States Department of the Interior...Geological survey...

gs 38000280


Geology--Pennsylvania.
Mines and mineral resources--Pennsylvania.

QE75 / .B9 no. 891