The Salt Lake tribune. [volume] (Salt Lake City, Utah) 1890-current, 1909-06-19
WORK At CACTUS
MILL PROGRESSES
Visitors Say Absolutely New
Plant Is Springing From
the Old One.
NEW MACHINERY IS
NOW BEING INSTALLED
Boston Papers Print Review of
Report Made Recently by
E. P. Jennings.

1t will be good news for western
stockholders of the Ncwhouse Mines
and Smelters corporation to learn that
the company Is permitting no grass to
grow under its feet at this time. Every
one who has been in Newhouse recently
says that the management is getting
the mill in shape for work, The plant
is nearing completed stage, and when
completed it will be as new mill as
the officials could install. From one
end TO the other tie visitor sees brand
new machinery and equipment, and
these innovations naturally impress all
who see them.
1t is understood cut this way that the
company IN planning a system of Mac
Quistan tube conCentrators for the pur-
pose of re:rcatirr the tailings dumps.
1t will be recalled that the MacQuistan
process operates on exactly the oppo
site theory of the ordinary concentrat-
ing plant, the process increasing the
surface tension instead of minimizing
1t. thus separating the metallic values
by causing them to float on water in
stead of sinking. Those who know say
that there are six million pounds of
copper IN the taillngs dumps which will
be rescued by this process at low
cost. And those who know say the
mine is far from being worked out
proposition.
The following is taken from the Bos-
ton News Bureau:
r. p. Jennings. a mining engineer
OF Salt Lake City. has submitted to
Charles y. Morse, chairman of the re-
organization committee. estimates that
there are l,l27 .0S3 tons Of ore in sight
averaging is per cent copper; partly de.
reloped and probable ore totals, 900 600
tons of rer ceui, partly exposed by
surface outcrop; while there are ,000,-
600 tons more of partly developed ore
containing from to II per cent. On
the west end of the Cactus ground there
are 300 feet of undeveloped territory.
MIR. Jennings figures costs of Il39
cents pound to lay copper down in
New York city under present mining,
milling. freight and smelling rates,
Costs under improved conditions be es
Inmates at Sl,45 a ton, mining and mill
ing; Tor an output of 10000 TO $4,000
tons month, the copper in New York
would cost 9,64 cents. On an output of
3oo,OO0 tons year with copper at l3
cents, Mr.. Jennings estimates profits AT
$3l9,6SO; at IA cents, $407 ,l60; and at
10 cents. $493,560. improvements VIII
reduce the cost of milling ore TO -
cents per ton on an output o. 10000
- f'-' ~ Slful uUW III use
has reduced the cost of mining from
$40 TO Sl,25 a ton, while on a large
output further decrease to 81 is eX.
pcctcd.
Two vertical shafts from the surface
10 the 60O-foot level and an inclination
from the 500 TO the 900-foot level, TO-
gether with numerous wines. chutes
ana raises, constitute the development
at present The ore in sight averages
fSb .
lower in the $50. 200 and 3OO-foot levels
fhan IN the old 100 level of the levels
helow. Copper content of the ore sent
10 the mill IN 1908 was lower than in
l9o', because last year the ore was
OBTAINED from crushed ground that
came from levels above the 5OO.foot
and contained low grade stuff from the
ZOU and 200 le"eis together with waste
used IN hlllng IN slopes or the 500. 400
an ana 2oo levels. Thus the i90S yield
OF copper was material,~ cut down
Concerning the high grade orc Mr.
Jennings says that 10000 tons running
10 per cent have been mined from thc
800, 400 and 500 levels The occnr.
renee is erratic, In the last few weeks
oo,ooO tons of 3 per cent have been
opened on the 200 level. this being
portion of the main ore shoot hereto. !
toIe uhdeEeloped, The square set svs-
the cavIng system
Ihe mill capacity is $4,000 tons a
monIn t and T the cost of milling 80 cents
ION. Ihls capacity Will be increased !
70 5O.uOO tons and the cost reduced m !
20 cents, The mine at present cannot |
FURNISH over 10000 tons month, Mr.
Jennings figures the cost of selling con. |
per aud the expense of the companyFs
eastern Stern otfice at % cents a pound.
Inc mine, he concludes. has good re. |
serves OF actual and partly deyeloped |
ore OF grade that will give profit |
ket prices if operations are condnciad n@
WIN ordinary business and TECHNICAL
aiolhty. Ire mine needs $4,000 10 nnt |
aown shaft from tho G50 to the 500
ieEel and e9nip with engine capable of
hoistlng 500 tons daily. ''' "