The Seattle post-intelligencer. [volume] (Seattle, Wash. Terr. [Wash.]) 1888-1914, 1896-07-05

Morris rulverixer. which Is a con~--,
machine. a cam In the center for~s,- p
rock against IS revolving iron ban. u
weighing IaS pounds. and nine snrSs L
diameter. . simple cnnt-ivance Came
machine to pulvevixe 10 any gsx& -
From the fsailverlxer the ore enters r II
40 mesh screens. in whieh II IA sf~s1 All
that ali material going into the tars. nj
OF uniform size. These screens A. -
u fees long and 50 inches In ssfaness- IA! ia
the ore is fed 90 the inside and = 49, III
through the sides nv the rcvoI,ss."
the machine. The ore Is then adrusss-s \
valves in the four-inch rubh>r -
the percolation tanks. which are y .sl
strongly bound with iron, and ara = ~
in diameter and S feet high, each 49, h
from 50 10 80 tons. The cyanide -.
Is fed 70 these tanks from below ~ ~S
her hose leading from the tanks 49,
the same size. and then the o.
suck the gold OUT OF the ore and ~
In solution. An assay Of she soar,es< $ 8
taken every hour to ascertain -.
the gold in all extracted 10 s1rss rss2 II
fire assay OF the ore. the process ~
traction taking from tive 10 yonr - h
according 10 the coarseness Of ghs -
cles of gold The liquid Is then ssr.-~ ~
into boxes full OF zinc shzvIrxs ~S,3f
cause the gold 20 nr~ciaitatA In IN s-l&
of black slime. II any rich soassss All
left behind in the percoia ton serI MI
weaker solution or wash IS rsin de n
TO carry 1t of and this Is precsnitsss1 nj
electricity. as the zinc has not ! s.,- Il
affinity TO take out the fine Eo1d. n ~3t
ore contains base metals o< any kins ,s}i
slime Is run into a separate seeflinr MI
the solution cleared or and the r,s.-l
precipltated by electricity or zinc Anra
residue from the settling tanks ana s-|3
eipitation boxes Is run into tvo ss.. q
tanks % feet in diameter and I feet AS2!I
TO settle the fine zinc and any othep AsI
metal. All the solutions return u nj
upper tank containing the strong ~
ton. none OF 1t running OF, % A.1 -1f
fine gold or cyanide can be la NAL
precipitation the gold Is dried verv s,sIf
fully and roasted 10 remove the ma p. NJ
which has given 1t the black coaar .4
we'll as other base metals. II 4 s,s}E
melted into bars as In other rroces1s
IL there should be any gold In tho - ri.
coarse al not to be entirely aissolve6 i3I
the solution, IL is run out OF the urnl>S3
tation tanks over amalgamztsnR sastr3k
on which there Is no water. and ehy~-1
matchmaking barrels. which are m Ell
electricity. All the tAilings win b ~
centrated and melted into base buIn-I
so as TO save the least particle 81 vr1sk
In tho ore. DR.. I,anghammer eseinn13f
the cost Of reduction by this procen n
IS cents ton for s. ore. and essin1S1
that 1t will save from SIS TO sT1 or r.
OF the value. according to tho amorna ~
base metal In the ore.
One distinctive feature about TIN -
cess Is that no water is allowed 10 &C
t. - - 1870
contained In the cyanide solution. ~
reversal of the old method
washing the pulp with water ~
matchmaking plates and conconhf
ing the mineral from the n
due with vanners. The old method =
TO save the coarse gold first and 9
catch as much OF the fine gold As ponu|
but In effect 1t lost large propofttno
the fine gold. which Is in floury nahml
light as to float on water and can II ~
glinting In the sunlight. The cy1n0
process aims 20 save the fine gold nrSk ~
then the coarse, which can be cAac1&
without trouble, and never lets Wot1I
touch the ore. The need OF care 10 ~
the fine gold Is great with the oknnon
ores. which carry a large properties III
their value In sulphides in very nno ~
ticles. r. Kurtx, the mining engines III
this town. goes so far as TO say that III
depth Is attained the ore win contain HI
free gold and more sulphides. so thst III
care required to save anything itkA III
assay value will be greater a. dey>1u3E
mcnt proceeds.
DIR. Langhammer proposes shortly NJ
make thorough examination Of the Oh
milkameen placers with view TO III
application OF a process OF his own al
So has an
that the gold is contained In the va14I
and Is attached to the grains Of sand LII
moisture. He drops the sand from h41I
per first into a screen, where II II drted MI
hot air and which 10 a drum 10 feet NQ(I
and five feet in diameter. 1t u I'll
passed through two sizing screens q MI
same size and construction with toouif
spirals which keep IL In circulation MI
rubbing together. where II II again NH
jected to hot air, so that the gold q Il
Off into bins below and the sand ~ earn
of from the end OF the last screen q MI
dump. The gold dust Is then carried h1I
percolation tanks, where II Is precipifaN
by zinc or electricity. The estimated nj
OF this process is II cents ton fof n u
tons per day OF 81 material, the coet
ton decreasing I'm proportion 70 the lAr9
quantity treated subject to aliowance
richer material.
The Wyandotte Is adjoined on the so4a
by the Mammoth group, composed g
Julia and Sunnystde, located In IN
the Mammoth. In 1895. all by George thFe
who sold them I'm June. 1895. TO the 49,
moth Mining Company. composed o. W..
cago people. On the Mammoth - So
30 feet deep on an eight-foot ledge q
rites assaying SIC TO SIS gold. Adjcna
the Waterloo Is the Pennsylvania, oxne
= \ Il u
Meek, all of Seattle. 1t has blsnhs
vein q inches wide. carrying So silver sn
n trace of gold. but n 23-foot tunnel snow3
IL beginning 10 dip TO the east. The $50
parties own tho Juanita on tho sumnz
OF the mountain adjoining the Waaa
on the north, showing an fs-inch ieoe
which assays ss2 gold and s. silver. 81
On the steep face of Mount characas -
rectiy opposite the Wyandotte ana 70
feet above the river. IL the Rusn er1s
located on true assure vein running ~
most north and south. The discovery 49, 49,
made I'm 1891 by Joseph Hunter, the -
eoverer OF the Black Bear. who locei
the Mountain Sheep on some cropps
which made a very rich showing o. 49,
rnsde Of silver. Shortly afterward a
Rush located the Rush and j. y. Riley
+. Dolan the Boston Boy, which II on
same ledge between tf1e Mountain -
and the Rush. Mr.. Hunter sank 80
on tbs Mountain sheep ledge and star
10 drift northward on the side or o.
further down the mountain, whers
found a ledge four TO six feet. which II
sayed from 20 10 20 ounces Of silver
sometimes ar high as 80 gold. The H
Mining. Milling Il Smelling Co, comps
Of Warsaw. Wis, capitalists. bought
Rush and Mountain sheep and began "A
velopnenf. continuing the drift On
Mountain Sheep for over 90 feet. Al u
clined shaft was sunk IT'S feet on the hzsI
ledge and drifts were run both Ways d
the 100 and i75-foot levels. showing
ledge from Eve 70 eight feet The CT
psny then started a tunnel TO strike
ledge at depth Of 40 feet and cut TT
lodges with II. one OF which did rot r.
on the surface. Al the point where ii
struck. the main ledge was quite -.
but drifting north and south shovel
~ufAefa m II feet NJ Gre nveFaR3nI -