Bulletin No. 284 
Series A, Economic Geology, 72 
DEPARTMENT OF THE INTERIOR 
UNITED STATES GEOLOGICAL SURVEY 
CHA&LES D. WALCOTT, DIRECTOR 
REPORT 
ON 
PROGRESS OF INVESTIGATIONS OF MINERAL 
RESOURCES OF ALASKA 
in 
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By ALFRED H. BROOKS AND OTHERS 
111 €> 
WASHINGTON 
GOVERNMENT PRINTING OFFICE 
190 6 
