LETTER OF TRANSMITTAL 
Department of the Interior, 
United States Geological Survey, 
Washington, D. C, January 1^, 1905. 
Sir: I have the honor to transmit herewith a manuscript entitled 
"Report on Progress of Investigations of Mineral Resources of Alaska 
in 1904," and to recommend its publication as a bulletin. The report 
contains fourteen papers, prepared b} T ten members of the geologic 
corps, who have been engaged in Alaskan investigations during the 
last year. 
In this report an attempt has been made to summarize the economic 
results of last season's field work. Geologic matter has been entirely 
excluded, except where it has a direct bearing on the subjects under 
discussion. While such a report can have no permanent value, other 
than as a record of mining conditions during the year, it is believed 
that its prompt publication will help the mining industry of Alaska. 
Very respectfully, 
Alfred H. Brooks, 
Geologist in Charge Division of Alaskan Mineral Resources. 
Hon. Charles D. Walcott, 
Director of United States Geological Survey. 
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