Glasgow weekly times. (Glasgow, Mo.) 1848-1861, 1857-04-30
From the National Intelligencer.
The Gadsden Purchase Silver Mining.


YunA, California Feb. 20, 1857.
Gentlemen: l enclose herewith extracts
from letter Just received by me from the
manager Of the Sonora Mining and Explor-
ing Company, with some additional infor-
nation regarding other mines. A residence
here Of eighteen months has convinced me
that the attention just now drawn 10 this
section Of our country is but prelude to a
history unparalleled, except by that Of Cali
forpia, in The annals of mineral wealth.
Population is Increasing gradually, and EN-
igraton has received an impetus from the
proposed separate organization of the Terri
tory, A convention, in which will be rep
resented every section of the Purchase, will
certainly assemble 10 petition again for a
separate Territorial government, in the
event of the present Congress refusing to
grant the request. The application is not
hatched by scheming politicians, and is only
a demand for that protection which any cit
izen has right TO claim under the law.
TuBAc, (Gadsden Purchase,)
Feb. IL, 1857.
We are progressing well
In our mining explorations and operations.
The La Aravaca Rancho, lately purchased
for the company, contains many silver mines
Of rich ore, besides some gold placers and
copper and lead mines.
We have lately discovered and occupied
ten veins Of silver ore near the "Ctno Col
orado,' between Soperi and La Aravaca, of
promising richness. The principal vein is
named, in honor Of our old friend and Presi-
dent, "the Heintzleman" mine, and yields
upon assay 80 marcos 10 the carya Of 300
pounds, or nearly 800 in silver 10 the one
hundred pounds OF ore. The ore is abund-
ant, and we have force Of Mexican miners
employed in its extraction, but have no bel
lows or means Of smelling and refining.
send you specimen, which if opportu-
nifty offers please send to your friend in
San Francisco for examination and assay
We have much confidence in this mine.
We have now in possession and working
Santa Rita Mines, 25 veins.
La Arayaca, rs Z"
Cepo Colorado, 10 4"
San Cayetan,
81 veins.
The value Of these mines is of course en-
tirely unknown, us we have not yet pros
pected them sufficiently, but ! predict an
early development OF silver from this coun-
try which will have q marked effect upon
the commerce and finances Of onr country.
We have three excellent mining engineers
continually in the in the tield-Messrs.
Gutenberg, Schuchard, and Brumckow-
and you may look for the most reliable and
satisfactory results from their explorations
and assays.
Very truly, yours CHAs. D. Pos TON.
"By the arrival of the schooner Jeannet,
al the mouth of the Colorado, the Arizona
Mining Company received some $4,000
worth OF goods and machinery, which will
much facilitate their operations.
"The Giia River Copper Mining Compa-
ny, whose mines are only twenty-five miles
above Fort Yuma, received by the same
vessel tools, blacksmlth's shop, and goods,
which will enable the proprietors 10 work
for the first time with advantage. This
mine promises TO yield all that could be
hoped for or desired. Some fifteen or
twenty veins have been opened, and the
prospecting is still going on, new discover
les being made from time TO time.
Assays have been made o. four differ
ent specimens of the ore, with the following
results: So, 81, 55, and 3l.5 percentage OF
metallic copper. The ore occurs as grey
sulphuret, red oxide, and carbonet.
"Since these assays other veins OF grey
ore two containing blue crystals OF copper
have been opened, averaging from 60 to
80 per cent.
1.-THE silver mines Of Mr.. Douglass, at
the Sopori Rancho, are reported TO be ex-
ccedinply valuable and Of very great extent.
Other rich veins have been abandoned on
account OF the Apaches, but when Demo-
cratic Congress shall have extended over
the citizens Of Arizona the protection they
claim under separate Territorial organi-
zatien, then these mines will be resumed
and add to that great wealth which is tc
make Arizona the peer Of California in min
eral resources"