ACKNOWLEDGMENTS.
To
the thousands of men engaged in the mining and metallurgical
industries, to merchants, bankers, and transportation officials of the
United States and Alaska, to the Bureau of the Mint, the Post Office
Department, 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 in furnishing
information on the production of gold and silver, acknowlÂedgment is
most gratefully made. This cooperation is each year more freely given,
and the results are correspondingly of increased value, not only to
those directly concerned, but also to the public at large. To the
authors of the various Survey mines repoi ts on the production of gold,
silver, copper, lead, and zinc, in the Central and Western States, and
in Alaska, Messrs. B. S. Butler, A. H. Brooks, J. P. Dunlop, C. N.
Gerry, V. C. Heikes, Charles W. Henderson, and Charles G. Yale, the
writer is especially indebted.
PRODUCTION OF GOLD AND SILVER IN 1913.
GENERAL STATEMENT.
The
recovered output of gold and silver in the United State". from domestic
ores and gravels in 1913 is shown in the following table in
distribution by States.
