Bulletin No. 250 
ftoiw / A ' EGOnomic Geol °gy» 43 
oenes ^ B) Descrip{ive Geology, 54 
DEPARTMENT OF THE INTERIOR 
UNITED STATES GEOLOGICAL SURVEY 
CHARLES D. WALCOTT, Director 
THE PETROLEUM FIELDS OF THE PACIFIC COAST OF ALASKA 
WITHIN ACCOUNT OF THE BERING RIVER COAL DEPOSITS 
GEORGE C. MARTIN 
WASHINGTON 
GOVERNMENT PRINTING OFFICE 
