The Seattle post-intelligencer. [volume] (Seattle, Wash. Terr. [Wash.]) 1888-1914, 1900-01-04
Organization Of q Big Exploration
and OysnidiDg Company.
INFLUENTIAL lNcoRPoRAToRs.
rrobabiIify That They Will Build =
Railroad Connection Between the
Camp and the Canadian Pacific
Elaborate Experiments TO he
made ON the Gold Ores of Repub-
Ito with the johnson Process.

Articles Of incorporation have been
1iled by the Republic Exploration and
Cyaniding Company, with capital
stock OF 100000, divided into 1.ooo,-
900 shares at 81 per share. A. A.
Aver. c. J. McCuaig. Of Montreal.
and Patrick Clark. w. ]. c. Wakefield,
= TO, and David III. Burial. OF Little Falls,
N. r.. are named as the incorporators and
are appointed as trustees to control the
affairs of the company until May e. 1900.
THIS new incorporation has been formed
primarily to construct and operate the
new 2oo-ton Republic mill, but other and
very extensive purposes OF incorporation
arc set forth. According to the Republic
Miner these include the construction OF
electric plants to furnish light and power
FOR the mines OF Republic and also for
al other purposes: the construction and
maintenance OF water rights. water
works. storage reservoirs and power
fumes; the conduct Of a plant 70 treat
ores and minerals by milling and smelt-
ing; the requirement Of mines and min
ing properties and the construction OF
railroads. tramways and other methods
OF transportation.
The company will own and control the
new Republic mill as separate and dis.
tinct corporation and II IL understood that
they will acquire and own various min
ing properties in the camp. Insomuch as
the construction of railroads and tram
ways Is set forth as purpose of incor-
poration, It Is within the range OF pos
sibilities that the Incorporation Is the
nrst step toward the building OF rail-
road into Republic. The remarks recent
" Of Mr.. McCuaig to the effect that he
intended to build q railroad into camp,
ndds greater Significance to this purpose
OF the new company as outlined IN the
articles OF Incorporation.
8. H. johnson. jr.. managing director OF
the great London. England. firm of 8.
II. johnson q Co., limited, who has gone
TO the camp direct from England to test
the efilcacy Of the johnson process in
the economical treatment Of Republic
ores, will begin his experiments during
m T tSs IS ins is proved
adaptable to the treatment Of Republic
ores the cost of reduction win be reduced
saying & or over viii prove profitable to
mine owners. BY this process the West
Australian gold sulphides and tellurides
with net extraction of 9S per cent. OF
the gold. While Mr.. johnson IL not IN a
postien to make even E sesss at o ass
ed, he is Of the belief that II his. process
meets the requirements, as anticipated.
case OF the Australian ores. This would
mean that every low-grade ore body. In
camp you'd become profitable Sa . AND tmas
Mr.. johnson himself reviews the subject
.'This process applies particularly to the
mill taiiings where it Is not practical to
employ teaching watts. The process Is one
OF forced filtration. in filter presses The
tanks, and If necessary are treated with.
an alkali and then dropped into fore
Ing receiver Or mont.juss,, .t the contents ITS
! compressed air. The filter cakes formed
In these .machifes contain about 20 per
GENT moisture: The Then, moisture, o Which y
water. - displaced by cyanide of potas-
SUM solution.
sThe shines are now in the best condition
tor mixing with III cyanide O bssn es
thus preventing undue dilution Of the
standard solution OF cyanide OF potassium
The concentrating presses are then opened
into a mixing vat or watts. The mixing
arrangement has vertical shaft actuated
by small steam engine, which works a
Is fitted stationary trunk pipe through
which the slime and cyanide solution are
continually being drawn into the pump
yane. Some idea Of the power OF this mix
shot Is placed In the mixing vat with ten
tons of water and the pump vane set in
motion, a continual stream of water and
ehot will be drawn into the vortex through
the pipe and thrown up the sides of the
vessel, to be drawn into the vortex again.
Elm this mixing vat the shines are thor
oughly mixed with the solvent, thus bring
ing the. gold In solution. After this has
been effected a valve is opened at the
bottom of the tank and the contents run
into second mont-ius. to be forced up
Into second set Of filter presses The
zinc boxes there to deposit the gold and
silver. The filter cakes In these machines
contain about 20 per cent. of moisture In
placement of which Is effected by pump
Ing water through the cakes and pushing
out the cyanide solution containing gold
before It. The cakes are then dropped into
tip trucks and taken away.
"In Western Australia. where this pro-
cess is particularly adaptable to the treat
ment Of the shines and where bromide Of
cyanogen has been employed to assist the
from beginning to end has not taken more
than two hours and resulting in an ex-
traction of eS per cent. of the gold contents.
The difficulty In treating Australian te,lu-
ride ores cheaply and without roasting has
been overcome by the filter press system
in connection with the bromo-cyani1e, re-
sulting In an extraction of rs per cent
Gold Ore Treatment Company of London.
TN one Of the West Australian mines
where the owners had been trying to ex-
tract the gold from their shines by cyanide
percolation, the results obtained were IS
per cent. extraction in from ten to four
teen days. But when the filter presses
were employed in conjunction with the
bromo-cyanide process the results obtain
ed We're IS per cent. extraction in about
two hours.
1.-THE cost of the process In the treat
ment Of Western Australian gold ore slimes
Is about S1.40 a ton. Perhaps II may be
possible to extract the gold from the pond
tailings from the old mill by this process"