Gilpin observer., 1900-11-29


John A. Logan and American Eagle.
which have recently been equipped
with fine plants of machinery.
A feature of the National chlorna-
ton mill at Florence is the concen-
tration of the'refuse after chlorination
by ten double -decked tables. by which,
Manager j. r. Mcdonald states, II
saving of forty per cent. of the values
left in tailings after chlorinating, is
made.
The output of Leadville is running
about 2,4OO tons day, only about 800
tons of which are lead carbonates.
The tonnage of the district comprises
Il considerable amount of iron oxides,
but the bulk of the product consists of
siliceous sulphides, carrying gold and
silver.
The old Beam mill, now in the hands
of the Florence NJ. x X. Company. is
being changed and repaired with the
idea of using the Beam roasting fur
naces and applying what is known as
the continuous system of cyanide treat
ment, with some features of amalgam-
alton and concentration.
Cripple Creek. Colorado, is the great
est gold mining center in the United
States: Butte, Montana. has probably
the largest number OF residents actual
ly engaged in mining of any one Ameri-
can city: H1oughton county, Michigan,
has about the greatest developed sys-
TEN of mining of any county on the
continent.
y large number of miners are at work
on the old Bassick mine. near Silver
Cliff. The new shaft is being driven
and will soon take the place of the old
one which caved in. At Grape creek
the company is now erecting large
concentrator, in addition to the one al
ready erected, and building numerous
shaft houses and ore bins.
In nearly all forms of metal mining
the British colonies in the South Pa
cific are prominent. As types may be
mentioned: Mt. Morgan, gold mine; the
Broken Hill Proprietary. silver; the
Bischoff. tin. in Australia: the Mt.
Lyell. copper, Tasmania. The Hartley
" Riley, dredging, New Zealand, in
stances the profit in placer PROPOSE
tions.
Flat wire hoisting ropes are in favor
ON the Comstock. Nevada: at Butte.
Montana: in Tintic district. Utah. and
two or three other localities Round
ropes are in more general use. Flat
ropes range in width and thickness
from 212XaS to 9X5s-inch. \ round steel
or iron wire rope. to hoist n 5000
pound load. should be not less than one
inch in diameter.
The richest countries in the world are
where mining is prosecuted most Wig
orouSly. The poorest countries are
those where there is no mining. The
richest men in the world are and al
ways have been great miners. from
King Solomon down TO the RothSchilds
and Rockefeller. who are now largely
interested in mining gold. silver. cop
per, lead and nickel.
The Geyser mine. in Fremont coun-
ty. with its double-compartment shaft
the deepest in Colorado. and Il fine
plant of machinery, will. ii is stated on
good authority, resume operations with
in the next sixty days. Plans for the
reorganization of the company are said
to be almost perfected. and the stock
will soon be placed on the market. Dia-
mond drill Investigations of the lower
workings are reported to show i'm
proved ore bodies.
Next to the Rio Tinto of Spain. which
has produced copper ore for nearly y
600 years, the oldest producer of copper
in the world is probably the Falugruf-
va mine. near the town of Falum, in
central Sweden. The mine is first men
toned in public records in the year
| 22O \. D.. but is much older than that.
The oldest privilege belonging To the
mine is from King Magnus Ericsson.
and is dated February n, 13i7. The
ore contains three per cent. copper, but
has proved profitable.
The Rocky Mountain smelter. being
erected mt Florence on plans prepared
by DR. X. +. Carpenter. will be II gen
eral smcltcr-that is, it will handle ores
from all sections. The plant is built
of structural steel, supported by heavy
retaining walls of masonry, and in
cludes two 36X1SO-inch furnaces. with
two Connellsvillc blowers and two en-
gines and three boilers. BY January
LIST, or sooner. this plant will doubtless
take its place ms one of the potent fac
tors in the field of applied mctallurgy.
The statement of the IIomcstakc
Mining Company of Lead. Montana.
Just published, gives II complete rec
ord of the company since its organiZa-
tlon. There have been shipped from
the mills 2.6O9 bricks. of an average
of 40 pounds each. making IA grand
total of 3G5.2GO pounds of gold, valued
mt from SG5,O0O,OOO 10 STOOOO,OOO. OF
this amount the company has paid in
dividends 9,193. JO-nearly onc-half
the capitalization Of the company. Ii
is estimated that the mine now has
more than sixty years supply of ore
in sight.
A large combination of circum-
stances are dovctailng with the pccu-
liar conditions in this section to great.
ly benefit the mining industry. The
extensive railroad building has made
possible the shipment Of owgrnde ore
from the more distant mines which
could not otherwise have been han
died: the pyritic smeltcr Is taking n
class of low-gradc sulphides that could