The Salt Lake herald. [volume] (Salt Lake City [Utah]) 1870-1909, 1907-09-28
JENNIE MILL IS
To Be ENLARGED
Plant Will Handle One Hundred
Tons Daily Two Months
From Now.
CYANIDE FOR THE TAILINGS
ENGINEER GAYLORD MAKES A
FINE REPORT.

After full investigation of mine con-
ditiops and after going over the ground at
the mine and, finally, after having COM
pleted exhaustive tests on the ores, En-
gineer Ernest Gaylord of the General En-
sineering company has given bis stamp of
approval to the methods employed at the
Jennie Gold Mining cOmpany's properties
in the treatment of the mines product
Manager G. A. Short stated Yesterday
that, as result of these Investigations. the
company would at once increase the ca
pacity of its mill to 100 tons a day
on Engineer Gayford's recommendation
elght additional NisSen stamps were or
dered, which viii make the battery con-
s1st of twelve, instead of four as at pres
ent. Tests show that each stamp can be
depended upon to crush at least ten tons
of Jennie ore per day, SO that, allowing
for stops for repairs, etc, the battery will
have an easy time in crushing 100 tons
daily. Another thirty-twO horsepower
gasoline engine will also be installed, while
the four horsepower pumping engine with
a capacity of forty gallons per minute, will
be increased to twelve horsepower and a
capacity of handling 80 gallons of wa
ter per minute, or a great deal more than
will be required TO supply the mill at its
maximum capacity. Three more Pierce
amalgamatOrs will be installed below the
plates, while each stamp will be sup
piled with thirty square feet of amalga-
mating plate surface
10 IlnISn up the equipment a cyanide
plant with corresponding capacity to the
enlarged mill viii be installed by the
General Engineering company, and then,
according to Expert Gaylord, the company
will have an ideal milling plant, a plant
in which the failing viii contain less than
81 in value. To operate the cyanide plant
a cost of not to exceed 90 cents a ton is
being figured upon while the entire cost
of mining and milling, Engineer Gaylord
reports, will not exceed s. a ton on the
crude ore.
Mr.. Gaylord carefully sampled the low
est grade dumps of the company and has
reported that il is impossible for the
grade of the ores from the mine to run
below $3.50 per ton in gold and silver. 1t
is apparent, therefore. that without count
ing on anything better than the kind of
ore described, the company viii be able
to recover approximately 50 per ton. or at
the rate of $500 per day. 1t is certain,
however, that the general run of the ore
from the mine will average a great deal
better than the figures given and the saw
ing viii be COrrespOndingiy more.
Without figuring at all on any thing be-
low the present depth at which the mine
has been opened and without counting on
a pound in excess Of what it is possible
to measure up at the present time. Expert
Gaylord calculates that there is now ex-
posed in the Jennie mine no less than o.
900 tons of ore.
Orders are now being rushed for lum-
Der and other building material and the
effort will he to get the enlarged mill in
commission during the next sixty days.
Machinery houses have promised to de-
liver the equipment required within thir-
ry~1 ax-e