The Barre daily times. (Barre, Vt.) 1897-1959, 1908-12-28
NEyApA.s METALLIC WEALTH.



Washington. ID. O., Dec. 2s.--The mines
Of Nevada produced In 1907 gold, silver
copper, lead and zinc TO total value OF
1881 ,4s0, according TO a report by
Charles g. Yale, just issued by the Unit.
ed States Geological Survey as. part OF
an advance chapter from Mineral Re-
sources of the United States, Calendar
Year 1907
The yield OF gold alone was 6eb,Sll.l4
fine ounces, valued at Sl2.l09,Abb, and
the value OF the silver, at the average
commercial price for the year, was S..
G75,l7e. The combined value of the
gold and silver was $l6,774,633, an
increase over that OF 1906 Of $l,767. 6l9,
Loss than 100000 OF the state total
came from the combined value OF the
copper, Lead, and zinc.
Increase in Output.
There was an increase in tonnage OF
all kinds of ore mined. Out of a total
Of 7235sl tons, 62s,50l tons were SLICE
Gus ore, Of which Nye county produced
24l ,677 tons and Tonopah 2l4,357 tons.
The average value per ton OF siliceons
ore in gold and silver was s25; of copper
ores, $685.; of lead ores, $3.50; Of copper
ores, 1851, and the average value per
ton of all kinds OF ore was $23.l0.
During 1907 the gold and silver mills
trIated 436,770 tons OF ore. from which
were saved S2,5s5,0s4 in gold, or an av-
erage per tone OF 1898, and sl,400,O39
in silver, or an average per ton OF
$500; toal value in gold and silver
OF s4,ls5,073 and an average per ton Of
S0.5s.
From 436,770 tons treated at gold and
silver mills and from 1850 tons Of cop
per, lead and zinc ores sent TO concentrate.
ing mills, total 10 both classes OF mills
Of 453,3fS tons, ll,7be tons Of concen.
trates were produced, valued at $445,642
in gold, orAan average per ton of s3s.os,
and at S730.226 in silver, or an average
per ton Of s63l7, total in gold and
silver Of sl,ls4,60s. and an average of
Sl0l.25 per ton. 4
As compared with the statistics for
1906, the figures for 1907 show an in.
crease for the five metals OF 81 ,S76,645.
The records show. production from 200
mines in 1907, of which PIG were deep.
as compared with l54 mines in 1905, Of
which l42 were deep.
Progress Of the Mining Industry.
In his review of the progress of the
mining industry in Nevada in 1907, Mr..
Yale makes the following statements,
There is a marked elimination Of
ore. shipping in several important dis.
tricts, where mines with large outputs
now have their own reduction plants.
"The average value OF all kinds OF ore
mined in Nevada was very high, though
lower than 1t was in 1906. The gradual
elimination Of the leasing system in some
of the great mines of Goldfeh and other
camps caused tho decrease, as these les
sees took out the best available ore only
and the companies mine more systemat-
ically and take the ore as it comes. In
many camps, however, the lessees still
continue to work, and in some of the
camps they are doing almost the entire
work.
There Is an evident desire at Gold
field and in other districts to drop the
high pressure conditions of recent years
and to reduced costs. In some large pro-
ductive properties, foremen and under
khOuAd tAAuths dIt uttnR DiJu&nl III iIOu |
other districts, where they have become
to the economies involved in
the mining OF low. grade ore, in which |
there is only small profit. In milling,
also, careful study is being made by ex-
perts to accomplish high extraction at
ow costs and with little waste.
THE metalIurgists at the 20-stamp
mill Of the Goldfeld Consolidated Mines |
company have made some remarkably |
successful practical experiments in treat
ng sulphides BY cyanide at greatly re-
iuced cost. In fact, by September, 1908,
he results accomplished were SO success
nj as to obyiate, probably, the necessity |
Il shipping sulphide ores to shelters, |
Is each mine can treat its own ores for
ess than the usual freight cost alone.
The process employed Is chemical. no
mechanical appliances being necessary,
md the plant is very inexpensive
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