Mohave County miner., 1901-01-05

are forced through the long pipe line
to reservoir hewn in the rocky noun
tain side 20) feet above the camp.
The equipment includes a well ap,
pointed machine shop with facilities
for making iron and brass castings, a
carpenter shop, two blacksmith shops
a timber framing shop, dynamos for
furnishing power to motors and light
for the mills, offices, stores aud houses
for the officials. Telephone and tele.
graphic Communications is had with
the outer world through Ogilby, sta
tion on the Southern Pacific road, II
miles west of Yuma and six miles south
of the camp. The company operates a
stage line to the railroad and two mails
are received daily.
During the operation of the mines
there has accumulated huge pile of
tailingS, amounting upwards to 500.
600 tons. For the treatment of these
the company put in operation the first
of last April one of the largest and
most complete cyanide plants in the
United States. 1t is located on a hill
some fifty feet above the tailings and
so arranged that once pumped to the
two steel stock tanks, each 2i feet in
diameter, at the top of the hill the solu-
tions decendS by gravity through the
various tanks. Below the stock or
cyanide tanks on a substructure bnilt
of II by - Oregon pine. are the five
steel percOlating tanks, each As feet in
diameter and five feet deep. Five
scrappers, each drawn by four mules
abreast, convey the sand to the base of
an incline where it falls through
large grating directly into cars.
A hosting engine hauls the loaded
cars to superstructure above the
tanks, where they are pushed by Indians
to the tank TO be filed. The percolat.
ing tanks have a capacity of 800 tons
aud one is filled every "A hours. Ow-
ing to this rapidity of treatment it is |
claimed that more tailings are here
treated than anywhere else in the Tn |
ited States. Other interesting facts Of !
are that the Free Gold |
company is saving 90 per cent. at a total |
cost of treatment of less than 40 cents
per ton.
Ten hours are required to fill tank
and the exhausted pulp is sluiced out
in two hours. This is done by power
ful stream of water. Although the
water used for this purpose is pumped
IA miles, the economy of the meth is
apparent when it j. considered that
two and one halt days are required TO
empty tank by shoveling, "a j. the
raSe at the King of Arizona plant. Be-
low he percolating tanks are two gold
'ankS, each "A feet in diameter and -
feet deep, aud two snmp tanks. each 36
feet in diameter and feet deep. The
zinc room contains 20 rows of com part.
nent zinc boxes, through which 400
tons OF solution pass each day. The
equipment also includes a powerful
Worthlngton fire pump for sluicing
"A Snow, a vacuum and a solu-
ion pump. also acid tank, drying fur
lace and complete equipment for re.
iucing the shines to bullion. The com
oany is Using an ingenious device in
rented by Superintendent K. r. Wheel.
'r, for cutting zinc shavings. By it
hey are enabled in an hour to cut
lays supply of shavings of one fifteen
Of an inch thickness. Thus
obtaining finer shaving than it is
possible to get in the market and at a
cost of SO cents less than current
orices. The plant j. under the direc.
ion OF A. H. Trum DO and operated by
EN- men, all unskilled labor, including
several Yuma Indians. - San Diego
Union.
The Future NaucnaHas