St. Paul daily globe., 1889-05-24
DAkOT T A
BLACK HILLS MINES.
More Sales Of Mines and Bet
ter Prospects Than in
the Past.
Men of Capital Are Coming
and Picking Up the Valu-
able Mines.
A Mistaken Idea About the
Lack Of Methods in Taking
Mica From Tin.
The Whole Matter Has Been
Successfully Solved at the
School of Mines.
Special 10 the Globe.

Special TO the Globe.
RAPID CITY, S. D., May 22.-This
year, so far, has been the brightest IN
the history of mining operations in the
Black Hills. Not only in the tin dis
tricts. but in the districts which are eX-
clusively devoted to the mining of gold
and silver, large sums are changing
hands, and great preparations are being
made, backed by ample capital, for the
production of gold and silver. In the
northern hills the Homestake group OF
mines, the Caledonia, the the Lu mas
and Uncle Sam, containing free milling
gold ores, are sending forth constantly
increasing quantity of bullion and at
the close of the first half of the month
of May $4,000 worth of bullion was
shipped east as the volume of the out
put Tor that period. The Uncle Sam
mine has long lain Idle, but recently
passed into the hands of men who
have the means to work it and
as it is known to be one of the richest
gold properties in the Hills, its stock
has taken start upward and is IN great
demand. The mines of the central and
southern Hills, however. are attracting
the most attention and are
DEVELOPING 4 RICHNESS
which was not dreamed of by the great
majority of people here. There are a
large number of these, which are be-
coming decidedly active. The Lookout
mill is dropping forty stamps and the
Standby mill, located about four miles
distant from the Lookout, in Penning-
ton county. is about to be set in motion,
and, perhaps, is already at work. The
Minnesota mine is in the hands of men
who are developing it by shafts, tun-
nelS and open cars, with a view to put
ting up capacious mill in a few
months.
Several large sales of gold properties
have been made in the central and
southern hills during this month. The
most notable one was the sale of the
Grizzly Bear mine, and several mines
adjacent to it, by Messrs Cook and
Rogers and the Myers brothers. pros
pectors who have been at work on the
properties for several years, for $40, 600,
to a syndicate OF
ST. LOUIS CAPITALISTS.
The cash paid down was $50, 900, which
is divided between four. Considering
the fact that these four have been hold
ing the property for some years, and
sugering the pecuniary embarraSs-
ments of prospector's life, the sudden
acquisition of such sum is very Salts
factory, to say the least. The Grizzly
Bear mine is located in wild and pic
turesque portion of Pennington county,
near the rough cliffs of Harney's peak. 1t
was thoroughly inspected before the
sale was made by competent experts
tod hot IN prIot,
and existed in large quantity. There is
twenty-stamp mill on the plovelty, and
it will be started up by its new owners
at once. 1t is also their intention to
add large plant to the present one and
to work a large number of men. In the
vicinity of the famous Eta tin mine are
several
GOLD PROPERTIES
whose ores assay very high. The
principal of these are called the Bullion,
William Custer, Columbia and Cross
mine. An examination of them re-
Gently made by noted mining men from
other parts of the world produced much
surprise among the experts on account
of their richness and the size of
the mineral bodies. 1t is believed
that the Eta district will become as fa-
nous for its gold production as for its
blus luuCCus ~ 10 Oil OpSA oOSISu Uhe.V
the ores of the tin mines carry some
gold, and that the Harvey company eX-
poets, in some of the locations, to re-
alize enough gold to pay the expense of
working the tin. In that case the tin
would be clear profit.
An interview with Orin W. Potter, of
the Chicago roller mills, has recently
been going the rounds of the papers. In
it that gentleman is made to express
hope that the inventive genius of Amer
leans may be able to devise ways where
by to lessen the cost of separating the
cassiterite, which carries tin from its
mica association. He apparently thinks
that tin cannot at present be produced
at profit in the Black Hills. If the
statement was made by Mr.. Potter, that
gentleman displays an entire miScOn-
ception of the present condition of
THE TIN QUESTION.
The whole problem OF tin production
was solved over year ago by the school
of mines in Rapid City, and it was found
at that time that mica was, in fact, no
inpediment to working the tin ores of
this section. Previous to that time men
who worked in tin here, without trying
the old contrivances which had been
long in use, devised new-fangled ma
chinery which, in the practical applica-
ton, failed entirely. Such was the case
with the Tin Mountain tin mill, belong
ing to the Chicago company of which
Mr.. Potter is a member. That COM
pany introduced into its service a
Cyclone pulverizer to pulverize the ore,
were so finely pulverized that the water
carried the valuable particles, mica and
all, into the waste. The new contriv-
ances, indeed, were the bane Of
THE TIN INDUSTRY.
They saved nothing and gave the dis
trict bad name. The Eta tin mill
was an example. After short run,
three years ago, it was closed down and
people thought failure had been
scored. The introduction of old style
machinery has changed all this, and
Cornish rollers, jigs, screens, ETC., are
found to work to charm. No cheaper
methods could be devised, and as the
cost of production is only about s2.65 to
the ton and the average output is
greater than per cent of cassiterite to
the top, the profits are large. At the
Eta. the Harvey Peak Tin Mining COM
pany is working over the old tailings of
the run made three years ago. At that
time only little over per cent of tin
was saved, and snow the Harney COM
pany is amazed at the fact that pei
cent is being saved, making the average
of the Eta ores over per cent. The
showing made by the properties of this
company at the present time is truly re-
markable. English ores rarely rur
higher than ~ per cent, and the ores
of this section are pronounced by the
Cornish tin experts, now engaged with
the Harvey company, to be the richest
in the world.
One Wife Too Many.
Special to the Globe.
HURON, Dak.. May 2s.-Jesse M