Bulletin No. 284 
eology, 72 
DEPARTMENT OF T 
UNITED STATES GEO 
CHARLES D. WALCO' 
REPORT 
ON 
PROGRESS OF INVESTIGATIONS OF MINERAL 
RESOURCES OF ALASKA 
IN 
19 5 
By ALFRED H. BROOKS AND OTHERS 
WASHINGTON 
GfOVERNMENT PRINTING OFFICE 
1906 
