The Calumet news. [volume] (Calumet, Mich.) 1907-1938, 1911-07-22
FINE OUTLOOK
FOR THE c. & A.
Continued from Page !

the Irish Mag shaft in another direction
went l,S00 feet below surface and eX'
posed, unchanged. the limestone for
nation In which the ore occurs. NJ
important ore bodies were exposed in
this drilling. which was not surprls-
/ ing, in view Of the manner in which
the ore deposits there occur The dis
closure Of the limestone unchanged
yielding one to two per cent. copper
shows that an extinguishment of the
ore bodies at that depth need not be
expected.
In the Irish Mag and oliver, which
are the older workings. added exposure
Of ore is maintlined steadily in old
as well as new ore bodies 10 compcn-
safe or, and at times 10 exceed, the
volume Of shipment. There are many
points Of explorations and virgin de-
vclopment, the most important being
In the Junction shaft. which passed
through some very promising ore oc-
.currcnccs in sinking from the 1900
to the LS00 foot levels. and these will
be exploited by drifts at the 1000 100
and 1900. The principal ore displayed
in the shaft was for 25 feet near the
100, with low grade material below
that point.
Calumet and Arlzonas Superior
mine, near Lordsburg. New Mexico,
ships about so tons daily, yielding
about go copper and good values in
gold and silver associated with much
silicia. Thereby the smelter has dis
continued the use OF barren SILICA for
converter Innings. The property is
held under option at reasonable terms,
The Cortland mine and the Mammoth
mine, owned outright by Calumet &
Arizona, are Idle, but enough ore is
said TO be developed at the Cortland
TO more than pay for all money .ex-
pended there.
Calumet q Arizona's smelter con-
tains four blast furnaces with a daily
capacity Of 500 tons each and two of
300 each. Allowance should be made
for 20 per cent. continuously idle for
reclining and repairs. and therefore,
the capacity is 2,400 tons daily. Plans
are i'm hand for romodellng said 10 in
volve an expenditure of $500 900.
The changes are required TO handle
the Increasing volume of sulphide ores,
which during the last two years has
been opened up in volume greatly ex-
cccding the volume of oxide ores. Ger
tain Inconvenience of arrangement
will also be corrected in the remodel
ing, which should produce a higher
degree OF economy and efficiency. Al
so under the new ARRANGEMENT the ca
pacity can he readily increased inde-
hnitely as desired Included in the
new plans are two G0-foot blast furn-
aces. the largest IN the southwest,
thanked by reverbcratory furnaces and
roasters. 1t may be. several months
before the supcrstructurc begins, but
filling with Stag for the foundation is
I'm progress. The reconstruction will
he in charge Of G. H. Repath who had
his earlier training in the Lake Su-
pcrior copper country was later first
assistant to Frank Klepetko in the
construction of the Anaconda smelter
ana who recently designed and super
intended the construction of the Inter-
national Smelling q Refining compa-
nys Toocle Valley smelter I'm Utah
Since consolidation IL is stated that
economies have reduced costs below
3 cents, thus bringing the earnings up
TO better than a rate of 81 per year.
\. L. Carnahan.