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GOLD AND SILVER.
265
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Source
of silver in 1912 in States and Territories, as reported from the mines
to the United States Geological Survey, by kinds of ore and by States,
in fine ounces."
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PLACERS.
The
output of silver from placers, mainly in Alaska and California, was
163,955 fine ounces in 1912, against 170,084 ounces in 1911. The
recovery is by refining the placer gold.
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DRY AND SILICEOUS ORES.
The
yield of silver from dry and siliceous ores in 1912 was 26,363,436 fine
ounces against 25,205,749 ounces in 1911. The most notable gains were
in Colorado, from 5,096,026 ounces in 1911 to 5,397,439 ounces in 1912;
in Nevada, from 12,830,194 to 13,135,677 ounces; and in Utah, from
2,569,157 to 3,486,562 ounces. In Montana the production fell off from
1,613,253 to 1,318,505 ounces; in New Mexico, from 1,183,265 to
1,141,786 ounces; and in Texas, from 422,870 to 404,180 ounces.
In
order of production from this source the five leading States ranked as
follows in 1911 and 1912: Nevada, Colorado, Utah, Montana, and New
Mexico.
With
a few notable exceptions, where there are mines producing true silver
ores, as in San Bernardino County, Cal., the dry or siliceous ores are
gold-silver or silver-gold ores (the latter notable at
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