ACKNO WLED GMENTS.
To
those engaged in the mining and metallurgic industries, to merchants,
bankers, and transportation officials of the United States and Alaska,
to the Bureau of the Mint, the Post Office Department, and the Bureau
of Foreign and Domestic Commerce of the Department of Commerce, and to
other officials, public and private, who have cooperated with the
United States Geological Survey by furnishing information on the
production of gold and silver, acknowledgment is gratefully made. To
the authors of the Survey mines reports on the production of gold,
silver, copper, lead, and zinc in the Eastern, Central, and Western
States, and in Alaska, Messrs. A. H. Brooks, B. S. Butler, C. N. Gerry,
V. C. Heikes, Charles W. Henderson, James M. Hill, and Charles G. Yale,
the writers are especially indebted.
PRODUCTION.
DOMESTIC PRODUCTION.
The recovered output of gold and silver in the United States from domestic ores and gravels in 1915 is shown below.
Approximate
distribution, by producing Stales and Territories, of the production of
gold and silver in the United States for 1915.a
