The Wallace miner. [volume] (Wallace, Idaho) 1907-current, 1916-11-02

The wide difference of opinion be.
tween the various engineers who ties.
titled in the trespass suit of the Ala.
media Mining company against the
Success Mining company recently be-
fore Referee Lawrence E. Worstel
has been the cause of much comment
in mining circles and a statement ia
ken from the tabulations Of the engi-
neers, whose estimates of the value OF
the ores extracted by the Success
company ranged from a net profit OF
$144,679.07 to net loss of $168.92, is
an interesting set of figures. The
case is now before Referee Worstell
who expects to file his findings in the
district court within week.
Estimate by Alameda Engineer.
#. Cushing Moore, local engineer
and former state mine inspector, was
the chief witness for the Alameda
company and according to his testi-
mony the net profit made by the Sue
cess company from ores taken from
Alameda ground was $144,679.07. Ac-
cording to the testimony, ore was ia
ken from the 400, $50 and 70O-foot lev
els of the Success mine.
In the 400 stope, Engineer Moore
figures the foot wall area at 2780
square feet; the average width of the
stope Is feet, the cubic feet of ore and
waste mined 1880. The average
grade of ore in this stope was, silver
20.45, lead 200, zinc 1895, the cubic
feet per ton of ore mined was 7.49;
tons Of ore mined, 1890; cubic feet of
filing in stope, 1880 cubic feet per
ton Of filling, 200; tons Of filling, 592;
tens of ore taken from 400 stope, 1898.
In the $50 stope the foot wall area
Is figured at 1874 square feet; the
average width of the stope 10 feet and
the cubic feet of ore and waste mined
at 1910. The average grade of ore in
this stope is estimated the same as in
the 400 stope, as is also the cubic
feet per ton. The tons of ore mined
was 2021; cubic feet of filling ip stope
1860 figured at 20 cubic feet per ton or
total of 90 tons of filing. Ore ex-
tracted from this stope was 1928 tons.
On the 700 stope the foot wall area
is given at 1924 square feet; the av-
erage width of the stope feet and the
cubic feet of ore and waste mined was
1909 cubic feet. The average grade
of ore mined in the 700 stope is con-
siderably lower than the upper levels
and Is given as silver 10 ounces, lead
7.5 per cent. zinc 25.7 per cent. The
cubic feet per ton of ore mined is es-
timated at S.S5. Tons of ore mined
1864; cubic feet of filing in stope SSOS
cubic feet with 20 cubic feet figured as
ton, or 1870 tons. Ore taken from the
700 stope was l174 or q total of 7495
tons of ore from the three levels.
Value From Various Levels.
The value of the ores taken from
the various levels Is figured as fol-
lows: 400 stope--Tons ore extracted
439S at $2l.95 per ton, 1886 10; min
ing and milling $3.50 per ton; net
value $89, 939.10
$50 stope-Tons extracted 1928 at
$21.95 per ton, $42.209S5; mining and
milling $3.50 per ton; net value $780,
1855.
700 stope-Tons extracted 1174 at
$14.6S per ton, $17,175.62; mining and /
milling $3.50 per ton; net value $15,- !
4l4.62, or an aggregate gross value of |
S155,921.57 and an aggregate net value
of S144679.07.
Net Values.
According to Engineer Moores fig
ures, the mill saving was silver Sc ozs,.
lead 1915 per cent, zinc IS per cent,
which averaged SO per cent, 39.4S7 ozs.
OF silver per ton, and As per cent zinc
and which had a lead and silver value
per ton according to New York quo
tations of $3.50, and $2S,S5, respect
lively, aggregating $62,55 less freight
and treatment charges of $3.50,
leaving a net lead and silver value of {
$42.S5, The zinc values per ton, rep
resenting a zinc content of 69.1S
pounds of concentrate, was S27.4S.
On the same basis the lead and sill '
yer values of ores mined on the 700 S
level are $60.47, less freight and treat q
ment charges of $3.50 per ton, or a +
net value of $4O.S7, and the value of
one ton of zinc concentrates had a f
value of $2743 v
The ratio of the lead concentrates t
IN the 400 and $50 levels was 3.44S;
I9.4S7 ounces of silver per ton of lead p
while the ratio of the p
inc concentrates was 2S9, giving a s.
let value per ton of ore mined from
hese two levels of $21.95 per ton. On
he 700 level the ratio of the lead con-
entrate was 9.195 with 36.O42 ounces S
4 silver per ton, and the ratio OF the
inc concentrate was 1898, or a net
alue per ton of concentrates of b
14.63 .er
Estimates of Success Engineers. pl
Rush j. White, formerly chief engi- at
eer of the Federal company and be
idney L. Shonts We're the principal tn
ngineers for the Success company. te
ngineer White gives the net value de
the lead concentrates extracted. TT
4 cod nm fbo o,,nno osa Ia