Butts, Charles,  1863-1946. <br/><br/>
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 .
<br/><br/> 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. 
<br/><br/><label>LCCN: </label>gs 07000674  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mines and mineral resources--Pennsylvania<br/>Coal--Pennsylvania<br/>Geology--Pennsylvania
<br/><br/><label>LC Class. No.: </label>QE75  / .B9 no. 279