01073cam a22002891 4500 gs 07000674 DLC 20260227111306.0 770423s1906 dcuabf f000 0 eng c gs 07000674 (OCoLC)2910473 U.S. Geol. Survey. Libr. NAlfC DLC premarc QE75 .B9 no. 279 TN24.P4 B9 Copy 2. 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. Mines and mineral resources Pennsylvania Coal Pennsylvania Geology Pennsylvania 24608 24608