the
mines report has $2,617,313 against $2,664,000 of the mint report; in
Utah, $5,121,646 against $5,121,600. A very serious difference is
shown in Nevada, where the mines report has $12,099,455 against
$15,411,000 of the mint report. This difference will be discussed in
greater detail on a succeeding page.
UNITS OF MEASUREMENTS.
Gold
and silver are measured by the fine ounce. In the computing tables
prepared by the Bureau of the Mint and the Geological Survey gold is
counted as $20.671834625323 per fine ounce. The average commercial
price of silver in New York in 1907 was 66 cents per fine ounce. The
monthly average price of the metal fluctuated between 68.84 and 54.57
cents, the latter figure being reached in December.
The standard unit for ore production is the short ton of 2,000 pounds.
PRODUCTION OF GOLD AND SILVER REPORTED FROM THE MINES.
The
following table gives the quantity and the value of gold and silver
reported from the producing mines in 1907 to the officers of the United
States Geological Survey. The last column in the table gives the
increase or decrease in value as compared with the mines report of the
preceding year as recorded in Mineral Resources for 1906.
Production
of gold and silver in the United States in 1907 as reported from the
mines to the United States Geological Survey, by States and
Territories, in fine ounces.
