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Collection: Books and Periodicals > Mining & Scientific Press
Volume 12 (1866) (428 pages)

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Page: of 428

232 Gie Wining and Scientific Yreas,
Wining aud Scientific Press.
Web DAV ER) cceemtentetr eer seccsvscsr.scc +e SENIOR EDITOR.
0. W. MM, SMITH. WwW. B. EWER. A. T. DEWEY,
DEWHLY & CoO. Publishers.
Orrice—No. 605 Clay street, corner of Satisome, 2d floor.
Perms of Subscription:
One oopy, per annum, Inadvanee;...01
One aan six months, in adv:
ia
a+ 085 00
fee 0 ‘ance, aan
Por sale by Carriers and Newsdealets. a6
¥t fs Impossible for editors to know ate the merits
and demerits of their correspondence, consequently the
reader must not reccive the opinions of our contributors
ag ourown. Intelilgent diseussion is invited upon all sides
and the evidence of any error which may appear will be re
ceivod In friendsbip and treated with respect.
Americnn nnd Forelen Patents.—Letters Patent
for Inventors can be secured in the United States and forelgit
countries throuzh the Mining any Scientiric Press PATENT
Acency. We offer applicants reasonable terms, and they
can rest assured of a strict compilanee with our obligations,
and afalthfui performance of allcontracts. For reference,
we wili furnish the names of numerous parties for whom
we have obtalned patents during the past two years.
Vavorable to Inventors.—Persons holding new {nventions ot machinery and important improvements, can
have the same illustrated and expiained in the Misina ann
Sciextwic Press, free of charge, ifin our judgment the
diseovery Is one of real merit, and of suifielent interest to
our readers to warrant pubilcation.
Payment in Advance.---This paper will not be sent
tosubsertbers beyond tiie term pald for. The publishers
well know that a good journal cannot be suatained on the
oredit system.
Mr, Wm. KR. Brndshaw, is our Special Correspond@ nt and Traveitng Agent, Ail favorsor asststance rendercd
him in hls progress tbrough the country in behalf of our
journal, will be duly acknowledged.
San Francisco, Jan Ist, 1866.
Mr, A. ©. Knox, is our fully authorized Traveling
Agent, and all subscriptions, or other favors extended to
him, will be duly acknowledged at this office.
San Francisco, Jan 11th, 1866,
Mr. ¥. N. Hudsen, 1s authorized to solicit subscriptions, advertising, etc., for the Mtnine anv ScienviFio Press,
in San Francisco, and to receipt tor the same.
a een
San Francisco:
Saturday Morning, April 14, 1866.
Look Out for Illegal Advertising!
All assessments of corporatioos levied on,
or subsequent to, March 26tb, are governed by
the new law approved on that day. We notice
that some of our importaut mining companies
are advertising their assessments illegally in
tbe daily and weekly press of this State. As the
new law is more liberal iu its provisions for
advertising than tha Act of 1864, these companies have yet time to retrace their steps and
begin anew and right. We speak of the matter for tbe benefit of all concerned. We have
prepared a set of correct blank forms for ndvertising assessments. which we furnish free on
application at nnr office, together with rules for
advertising and copies of the new law.
Tudicious Resolutions,
Several nf our most substantial and judiciously managed mining corporations have
passed resolutions, since the approval of the
new asscesment law, requiring all notice of
assessments and sales to be published in the
Mryine anp Scrertirie Press, the only thorough (daily or weekly) mining journal on this
coast. Our efforts to concentrate all mining
advertisementsin one paper, for the economical
convenience of charebolders and assessment
payers, are meeting with decidcd success.
‘Those who helieve in eupporting the mining
cause, should bear our paper in mind, and
hring up this subject at the next trustee or
ehareholders’ meeting.
San Fraucisco, April 7th, 1866.
Mining Laws of 1866.
It ie our intention to issue, in cheap pamphiet form, previous to May lst, a full 20d correct copy of all laws relating to mining adopted
hy tbe California and Nevada State Legislatures of 1866. Some of these Acts are of
vital importance to every citizen interested in
mining.— April ist, 1866.
Atum Mines—The Clear Lake Times tells
of the discovery of an alum nine, or deposit of
alum, in that region. A correspondent writes
to the Times: “I have about one pound of
prre alum, beautitully crystalized, obtained
from tbe imperfect wasbing of six or seven
pounds of aluminous clay, which was taken
froin the Kelsey Creek alum bank. ‘Che bank
is most favorably located for working,”
THE QUARTZ MINES OF GRASS VALLEY. .
The magnitude of the quartz mining interest
of California is just beginning to be approximately realized by eapitalists abroad. The
unfortunate results of the early attempts at
that description of mining in this State, particularly those in Mariposa county, where the
advantages of ample capital, the highest scientific acquiremeuts and the most experienced
skill attainable was freely brougbt to jbear, .
produced such a discouraging effect upon the
business, as for a time to quite deter any .
further investment of foreign capital’ in that .
direction. Even our own capitalists could not
for a long tine thereafter be induced to look .
witb ony considerable degree of favor upon
quartz mining; and, upto the Washoe diseovery, the fact that a San Francisco merchant
was known to be investing in quartz, was quite
sufficient to ruin his credit throughout the
entire mercantile community.
In the meantime, bowever, a few men of
meats in Nevada and Amador counties, quietly
but perseveringly continued their operations,
with varied success and under most discouraging circumstances, until by the gradual depreciatioo of labor and materials, the cost of
raising and crushing rock was reduced to a
paying basis. About the time this period in
tbe history of the business had arrived, tbe
world was suddenly startled by the wonderful
silver discoveries on the Comstock lode in
Washoe.
Tbe extraordinary yield of the surface ores
at the points first opened upon that lode,
produced a complete revolution among tbe
hitberto doubting, money-changers of San
Francisco. The consequence was a general
rush for the new mines—lorge fortunes foro
few, and utter ruin for tbe many. Several
years passed by and stocks whicb had gone up,
under the excitement, to thousands cf dollars
per foot, suddenly fell to as many hundreds;
while the great majority of them became utterly valueless—not worth cveu tbe paper upou
which they were printed.
In the meantime, most of the old pioneer
quortz men of Grass Valley, continued on in
tbe quiet, even tenor of their way, working
cautiously aod ecouomically, and going down
gradually with their inclines, so fast only os
the mines themselves would pay the way ;
carefully eschewing assessments, and avoiding
costly structures, for mill houses or superiotendents’ dwellings, and employing no managers ia either mill or mines, but men of
experience and skill. The result of such a
policy was tbat when the crasb came upon
Washoe, tbe mines of Grass Valley sbone forth
in their true colors, growing richer as tbe work
progressed io depth, and exbibiting to the
world a record of steady, onward progress, and
a development of permauence nowhere exceeded in the whole bistory of' mining. All
this was acconiplished, almost, without a dollar
of foreign capital; that which has since gone
there has been attracted thither by actual
developments, and has been expended with
the view of permanent and productive investment.
In taking a geueral survey of tbe field of
F qnartz operations throughout the State, the
mines appear to be grouped togetber at intervals along a belt of country, extending about
400 milesin length and occupying the entire
western flank of the Sierra Nevada mountaios,
from their very suinmit quite down to tbe foothills. These groups, so far as preseut explorations have gone, are widely separated ; although
it is far from certa.n that even the intervening
country may not contain almost innumerable
groupe of greater or less degree of value.
The most valuable and thoroughly prospected
of these groups is that at Grass Valley. ‘The
altitude of those inines is about 2500 feet.
Ybeir geological association is greenstone and
syenite, with a beavy belt of serpentine on the
uortb, eeparatiug it from the mines of Nevada,
still further north, and which are mostly located in granite. So far as explorations bave
been made, no other district in Californin, or
elsewbere, has ever been found to equal this
group In either the nuniber or tichuese of its
mines. Asa general thing these veins have a
. northerly and southerly direction; but the
tule is far from universal. In fact some of the
most valuable, as the Eureka, for instanee, is
almost due east and west ; the Lucky, -Cambridge, North Star and otbers of equal
value, are nearly so. They are all isolated, and
‘not continuous. When accurately delineated
upon a map, o work which is now being done
with great care and at much expense, they present every variety of direction, inclination, dip
and angle. Oue, ‘in particular, and perhaps
the ricbest of the group, presents walls ond
dip almost like the walls of a bowl from whicb
ahout one-third of its eircumference bas been
removed.
‘We are led to infer from these facts, and
contrary to the generally received opinion, that
the peculiarities mentioued ure of no value
whatever in determining the paying qualities
ofa lode. The formation of the lodee, and
the aggregation of the mineral is undoubtedly
due to the character of the country rock. How
they have been aggregated is a mere matter
of speculation. Tbe most essential point is
to find a group so aggregated and well filled
with mineral. The explorations already made
ore such as to set at rest all doubts ae to their
permanence; and to warrant the most liberal
outlay of capital in providing machinery to
follow them down toan indefinite depth. The
lowest point yet rencbed in Grass Valley is a
little over 300 fect; but the Eureka mine, in
Amador county, has been followed down more
than 1000 feet in depth, at which point this, as
well as all the dcep mines in Grass Valley,
is found to pay equally well as at any poiat
above, while the constant decrease in the cost
of working, by the diminution in the price of
labor and the improvement in machinery and
skill for saving the precious metal, more than
compensates for the increased cost of miuing
at o greater depth.
One of the most. noticcable and important
features in Grass Valley is tbe fact that not a
single failure has occurred to find pay ore
where any considerable depth has been attained;
and nearly every mine has paid its own way
from the start. The mines of Grase Valley
have becn developed without any of the cumbrous machinery necessary to incorporated companies, with their salaried officers and monthly
or quarterly calls for assessments. There is
not another locality on the globe, ia whicb so
much mining’ has been done, where the same
record can be shown. These sinsple facte are
sufficicut to establish the pre-emiuence of Grass
Valley over all other localities as a place for
tbe permanent investment of capital.
Tn saying thus much of that locality, we ore
not aware that we are speaking disparnogingly
of any other quartz mining sectiou iu California. Ifweare not mistaken, there is nota
quartz mine in the entire State, whicb bas
been opened to the depth of tbe deepest mines
in Grass Valley—say three bundred feet—
which is not to-day a paying mine. These
facts—nnd we believe they ae facts—ought
to open the miuds of capitalists everywhere, to
the value of tbe gold mines of California as an
illimitable field for the permanent investment
of capital.
Hunter's Concentrator.—Mr. Hunter, of
this city, has recently spent scveral months in’
Grass Valley, giving his machiue for concentrating sulphurets,a thorough practical test.
The result of his experiments has been several
important modifications and improvements
over the, machine, as hitherto constructed, by
which its efficiency is said to be eobanced, while
its cost has been greatly decrensed. He is now
constructing scveral of these machines which
are to be placed in the new mill of the Empire
Company, now in process of erection at Grass
Valiey. We may shortly give a full and illustrated description of this concentrator, with
the latest improvements and niodifications.
The commercial importance of Cincinnati
may be figured from the value of some of tbe
leading reports of 1865, as follows: Iron,
$5,405,936; cotton, $32,103,470; coal, $6bat petroleum, $1,120,350 ; salt, $1 ,184,OIL WELLS IN BURMA,
It is quite well known tbat the Europeao
market hae heen supplied with petroleum or
rock oil from Burmab for mony eenturies ; bat
tbe impression bas generally prevailed that the
supply bas been derived from springs. Such,
however, ie not the case. Oil wells, similar to
wells dug for water, bave heen used from time
immemorial for supplying the market with this
useful substance, which, huwever, until quite
recently, has generally been used in ita crude
state. The Rev. Howard Malcom, who visited
the vicinity of some of the wells situated near
a village in the river Irrawaddy, and some 300
miles from its mouth. gives a very interesting
and probably the most reliable account of
them ever published.
28th, 1836, some twenty years anterior to the
sinking of the first oil well in Penusylvania ;
Tbe wells are two miles from the village,
Tbe road to them is well beaten by bullock
carts, often crossing the bed of the torrent
(uow dry) whence the village derives its name.
A more rugged ond Gesolate region cun scarcely
be imagined. he rocks are sandstone, puddingstone and petrifactions ; the soil, sand and
blue clay. Sninoll hills on every side rise abraptly, like waves in a chaffed sea, sterile and
uosightly.
The wells are very nnmerous, said to be
more than 400, occupying a space of about
twelve square miles. ‘They are from 200 to
300 feet decp, of small calibre, ond sustained
by seantling. ‘Tbe temperature of the oil when
first raised to the top is 89°. Men do uot go
down, but an earthen pot is lowered in ond
drawn up over a beam across the month, by
two men runving off with the rope. ‘The pot
is emptied into o little pool, where the water
with which it is largely mixed subsides, and
the oil is drawn off pure. It is exported in
eartben jars containing about thirty pounds.
The price now, including the pots, is about o
tical for 234 viss, or about filty cents for ten
pounds. A well yields about 400 or 500 viss
per doy, and is worked hy three or four men.
Sometiines 700 are obtained» Hach well gives
a daily average of 150 gallons. ‘The gross annual product is eighty million pounds.
This uost useful oil is very extensively used
for lamps and torches, and is exported to all
parts of Europe where it can be taken by water.
It is also used for preserving wood, mat partitions, palm-leaf books, ete., from insects and
from the weather, aud is an admirable article
for these purposes. Even white ants will not
attack wood whicb has been brushed with it.
A boat’s bottom kept properly in order with
it is about as safe as if coppered.
It would appear, from the above, that the
oil regions of Burmah are very similar in choracter to those of California. Flowing wells do
not appear to have been found there; buta
great number of openings are made hy sinking
wells into the oil strata, into which the oil percolates with the water, aud trom which botb
are drawn up and separated as above described.
Such wells resemble what are here called
“pumping wells.” Present developments appear to indicate tbat a eimilar mode of operation wiil have to be adopted in California for
obtainiug petroleum; pumps will, however, be
employed bere instead of the primitive mode of
raising the water employed in Burmah, and the
ongur will be used instead of the shovel for
sinking the wells. The wells of Burmah have
been worked for centuries, and therc is every
reasou for believiug that those of California
will be equally permanent. There con be no
doubt but tbat with our superior appliances
they can be made profitable. It iy not neces
sary that we sbould find flowiug wells here to
make the business pay, albeit such developments would be most welcome to tbe oilseekers.
> Burtron rrom Rerse River.— We learn
from the Reveillc that tbe amount of bullion
shipped by Wells, Fargo & Co., from Austin,
Reese River, during the month of March, was
was $33,980 in valuc, weighing 1.926 pounds.
The National Bank of Austin shipped during
the same time bullion to the amount of $35,113.
Rica Rocx.—aA single blast was let off a
few days since in the Euterprise claim, Excelsior district, which threw out seven tons of og
rich rock as is often seeu in any part of the
couotry. So says the Virgioia Entenprise.
We give the following ;
extract from one of his letters, dated June