Butts, Charles, 1863-1946.

Economic geology of the Kittanning and Rural valley quadrangles, Pennsylvania, by Charles Butts. - Washington, Govt. print. off., 1906. - 198, v p. illus., XI pl. (part fold., incl. map, tab.) diagrs. 24 cm. - U.S. Geological survey. Bulletin no. 279 .

Subject series: A, Economic geology, 67; B, Descriptive geology, 83. Folded map in pocket. Issued also as House doc. no. 827, 59th Cong., 1st sess.

gs 07000674


Mines and mineral resources--Pennsylvania
Coal--Pennsylvania
Geology--Pennsylvania

QE75 / .B9 no. 279