Custer weekly chronicle. [volume] (Custer City, S.D.) 1890-1931, 1892-02-13
Mining Items.
McARTHUR-FoREsT PROCESS.

Messrs. Frank 4 Darling. of Denver,
representing the Gold and Silver Ex-
traction Mining and Milling Company
OF that city, have been in the Northern
Hills during the past two weeks, making
tests of Black Hills ores, with the now
famous McArthur-Forest process. Some
OF the leading mining men of Custer
have been corresponding with Frank
Darling with view to induce them
to put up one of their mills at Custer
for treament of our refractory ores The
gentlemen signlfied their readiness to
do so provided our ores prove to be as
represented, and accordingly on Tues
morning G. w. Robbins and III. A. Al
bien visited Deadwood, taking with
them for test samples of ore from mum.
v ter Of mines In this vicinity. II was
examined and tested, and readily Jgo-
nounced very rich. So far the gentle
men were more than satisfied, and ask
ed that samples of the average and more
ordinary ore be sent them. A consider
able amount of unsolicited ore was sent
up TO Mr. Robbins Thursday morning,
nut no result Of the test has as vet been
received Frank and Darling will prob
ably visit Custer when they get through
at Deadwood. and the prospects for the
erection Of a mill here, equipped with
this process, which seems very suitable
for the successful reduction of the ores
of The Southern Hills is very bright. OF
this process the Denver Times speaks
as follows The Gold & Silver Ex-
traction, Mining & Milling company of
Denver has just closed very important
contract with Isaac +. Blake, president
OF the Continental Oil company of this
city, and a number of other gentlemen
representing the B. & b. Mining COM
pany. BY the terms of the contract,
Mr.. Blake and his associates are to erect
a 100 ton mill at The Needles, on the
Colorado river, In Southern California.
The new mill is to have the right to use
the famous Macarthur Forest processes
for the extraction of gold the American
rights of which are controlled by the
Gold & Silver Extraction, Mining and
Milling company of this city. The pur-
chasers are greatly impressed with the
process after number Of experiments
with it on the ores from their extensive
group of gold mines. They have found
that the wonderful process enables them
to make saving of from 95 to 100 per
cent. They have heretofore been un-
able to treat their ores by any other
process, and their mines have been idle
for some years. There are also other
mills in operation as follows: Calumet
Gold Mining company, Middle Creek
Shasta county, Cal Shasta Gold Ex-
tracing company, Middle Creek, Shasta
county, Cal; Mercury Gold Mining CON-
pGny, Fairfield, Utah; Hoffer & Roerig,
Nederland, Boulder county, Colo; Liv-
ingston Gold Mining company, Boulder,
Colo; S. 5. Badger, Ouray, Colo; Reven-
ue Consolidated Gold Mining company,
Revenue, Mont, and others in course of
erection"
ANOTHER LETTER FROM PROF AUGnEY.
The following letter written by Prof.
Sam'l Aughey to c. A. Haserodt OF this
city. and relating to the treatment of
the refractory ores of this section of
country, will be of interest to our read
ers:
HoT SPRINGS, ARK, Feb. 4, 1892
c. A. HAsERoDT, ESQ.
DEAR SIR Yours Of Jan. 26th came
some days ago, but as got behind with
my correspondence l have Just now
reached the turn for your letter. In re-
gard to my tests on your ores. l first
made a preliminary assay which re-
jected as unsatisfactory. Then | made
three assays, using the method employ
ed for telluride ores. The three gave
the following. which l copy from my
record book
No. /, gold $4,000; silver S252.