illetin No. 300 
Spriw / A ' Economic Geol °gy> 86 
oenes 1 B, Descriptive Geoloev, 1 
Descriptive Geology, 105 
DEPARTMENT OF THE INTERIOR 
UNITED STATES GEOLOGICAL SURVEY 
CHARLES D. WALCOTT, Director 
ECONOMIC GEOLOGY 
OF 
HE AMITY QUADRANGLE 
EASTERN WASHINGTON COUNTY 
PENNSYLVANIA 
BY 
FREDERICK G. CLAPP 
WASHINGTON 
GOVERNMENT PRINTING OFFICE 
19 07 
