The Salt Lake herald. [volume] (Salt Lake City [Utah]) 1870-1909, 1906-02-02

Another Communication Is Forward
ed by Him to President G.
M. MacNeill.
OLD REPORTS ARE DUG UP
PLEA is MADE FOR TESTS OF
DIFFERENT DEVICES.

Colonel E. A Wall has forwarded an
other letter to President c. NJ. Mac
Neil Of the Utah Copper company for
the purpose of emphasizing all that he
said in his communication of last week.
Like the first one, he gave to the press
yesterday with a declaration that he
wanted everybody to know just where
he stood in his urgency that no mistake
should be made when it came to the
building and equipment of the NAM
moth new milling plant that has been
decided upon by the company in which
he is the largest individual shareholder
The communication follows:
Salt Lake City, Jan 81, 1SO6-Charles
NJ. MacNeiIl. President Utah Copper Co,
New York City--My Dear Sir: Since my
upon examination of a copy OF letter
written by Manager lacking, dated Re
public, Washington, March % 19yl, and
addressed to Major r. @. Edwards
Leckie, at same place, (Which was re-
ceived by me by mail from the hand OF
Mr.. Jackling), that, according TO MS
statements as set forth in the letter, he
obtained exceptionally favorable results
in the concentration of several hundred
tons Of the ores from our mines by crush
ing the ores with our little flve-stamp
mill and treating the product upon VII
fey tables. as long ago as 1879, and
doubtless forgotten by Mr.. lacking.
Trusting that any information that will
aid in the solution of the seemingly
veXed problem will be acceptable, 1 quote
from Mr.. Jackling's letter as follows:
Tests Made Long Ago.
During the summer of 1899 I under
took some metallurgical experiments on
this ore and concentrated several hun
~ Ton "a he nnl 1F1G
dumps at random The mill which 1
used was an abandoned five-stamp mill,
without any particular adaptation to the
ore, and without appliances for making
a close saving,
by crushing with light stamps to .
or 0J~mesh, and concentrating roughly
over Whitley table, without siZers Of any
KIND, and without any special endeaVOr
to save values from the large amount of
shines produced, I made a saving of III
per cent Some experiments made in a
rough way by collecting shines and run
ming them over Vanner, resulted IN an
additional saving of about Is per cent,
or a total saving of 80 per cent Of the
copper values, but I have based my es-
Inmates on a basis Of 70 per cent saw
ing"
The latter named per cent Of saving
applied to Mr.. Jackling's present method
would add go per cent TO the sum Of net
profit now ibeing recovered
I was present during the greater pOr-
ton of the time in which the test re-
ferred to was made, and for Eeveral days
was shown the daily assay sheets, show
ing contents of heads" tails and pro
duct taken at regular intervals of
few minutes time, the determinations be-
ing made by a competent assayer on the
ground.
The actual results showed an average
recovery OF 6012 per cent of the copper
Tor the first four days work, exclusive
Of values contained in the shines, which
were then being stored for future treat
7 lxr1e
as at that time Instructions were received
from the DeLamar head officer &c with
hold further information from me- and
thereafter I paid little attention to- the
operation The test lasted about thirty
days
The first few days the test was under
the supervision Of James Forester, an
expert of exceptional ability in ore con-
centration. He was succeeded by Henry
NJ CrOwther, promoter, and now general
manager of the Continental Alta Min
ing company at Alta in this state.
Mr.. lacking visited the property once
only during the time, and returned on
the same day spent probably an hour
at the mill; but this should not detract
from the value of the test, or the ap-
proximate correctness of the figures
which he gives, as they were doubtless
taken from the records of the work as
kept at the Mercur or Salt Lake Of
ices.
Paid $4,000 for Reports.
AT z ldLSF OaIS i arranged with MI.
lacking for copies of reports and all
data collected by DeLamar's engineers
during an exhaustive examination made
Of the property, including the mill test
referred to, for use in an endeavOr to
enlist some friends in repurchase of
the quarter interest in the property which
had previously sold to Captain Della
mar, and had agreed, in case I should
make successful use Of the data, to pay
him 5000 for it.
The letter from which I quote gives
the desired facts, though not as com
plete as I had wished, because 4 pur-
ports to disclose facts gathered by Mr..
lacking himself, whereas they were the
result Of examinations made by Mr.. Mac
Nichle, Mr. Gemmel and Mr.. Cohen as
to the mine, and the parties above
named for the mill work; Mr.. lacking,
as before stated, having no part in the
work; but this also is immateriaI so far
as the facts are concerned.
l have no doubt, however, they were
given TO you, as to Major Leckie and
that you were largely influenced thereby
in your purchase of the interest in the
property from US, as upon completion of
the sale to you Mr. lacking reminded
me that he thought himself entitled to
the 5000 mentioned above, and I paid
1t 70 him.
Refers to Newhouse Methods.
Now, should you be inclined to make
the Iong-talked-of trial Of results in this
!lItle MIL, have two Whitley tables not
N use Which should be pleased to loan
without cost, and which, together with
otner machinery in the MILL would en-
abe you TO make the test at a trifling