The daily gazette., 1877-10-03
Letter From California.
correspondent of the baltimore sun.
SAN FRANCISCO, Sept. q.

NOiiSAPOuQtllt vi bltb JdtbiIiUTH sun. L
SAN Francisco, Sept, 81. |
PAYING AND NON-PAYING GOLD
| MINEs-PRoDUCT OF PROMINENT |
OBSERVATION-DISCLOSURES AND ABAN-
DoNED NlNEs--sILvER AND GOLD
COMBINATIONS. &c.
Grass Valley, in Nevada county, has
long held the foremost rank as the most
productive gold mining centre Of Cali
iOrnia. Elsewhere paying gold mines
are Ter apart. seldom more than one ~
a dozen OF claims.oa any continuous ledge
Of aurilerons quartz is worked, because /
The crop irHicuioIs are not promising.
1 Often the ground Is held, by pfe-emptor5
lwho do nothiue themselves but ask 4 big
piice. NInG t"uu5 Ofall the claims o.
all-the 1usnz 4edbes oi California ARE
tlus sdO9-ill-tht-rn1itored at this time.
i Nov an uIieSpOrel ledge ,haSi in
rdlllt; no value, even lfthe adjoIliut
cldrh Is paS ins tan thousadd dollars
a montd. +, lsia dsuil n'hnE Claim 4
us /, JuOJ feet uhi the crop oil tue ledge.
|lU'lHs gives the right % follow it a; tar
down as tie same extends III 40 case
does such y claiiu pay TO work its entire
length. If 200 feet Of "pay chuiY' be
found it is satisfactory. the reinal.ing y
200 feet being barren is not worked. sol
tlIas, y hen d soiiei speaks OF the length Of
hsclaim on d led5' lie should be required
10 show how lon.is his pay chIte.
ln many districts tle~e arc not ply|
| chules. Iue veins, like those Of tue
3buauzl silver mines, are "pockety.'
lphy orc uccaIs ONLY IN b1uehes. lheia
| is 80 rule 10 eluQp e&Noiat'on, NAe-
itnulu5 Of such y4l4S don'5 pay to wJik.
Nov and tUeu lueliy pocNeL eHreit,.
t'@ mlnar. 4isn Of ,ntt 'aaaus sdJuld
MOI take tee r1sS. Associate capital ollen'
reopaas ahandonsd porEc -mmei, and,
all.r working year or Two, q pocEal is
struck ot several nuldfed thousand dol
hats before the uouanzt is eShanstaJ.--
Tie great Euieke mine OF Grass valley
worked ON a pay chute for ten }eal5 ant
COB tjgr and q bait millions OF dollnls,
half Of which was prrh. but lhe pas
lcllle took a luti tuu1 l4uitS course o1t
iuf the lglclig allm butl tle liIpo 07tea
iyearsa5o, where 10 may c0Wiau1 tur
lye4rs tu come ear ,h ute idtlp sldtf-
OlicIs- For tive years the Eureka has
been runnilg Though barren quartz in
is3uch ct % new pdi cbule Wilh!t the
boundary OF the calm, without success,
and now they have covered over the deep
iuHhl and abludoIel the wofks. The
north Star and Tho Alii5Onitncle mines
once celebrated foe large dividends, have
be en- long since abandoned, aud many
more in Grass Valley Of less mole are shut
lUp.
! when money and WAGES get as cheap
as in other countries, say one Aall pre-
sent rates, no doubt these abandoned
mines WILDE revoked to larger profit
than ever. This expectation is founded
on the generally accepted theory that
auriferous quartz derived its gold from
deep reservoirs Of gold i'll melted state
far below our reach.
The country rock In which these quartz
veins occur is either slate, limestone or
granite. Earthquake forces appear TO
have assured the country rock, and these
assures were filled by injections OF auri-
ferrous quartz in a melted state from
J the depths of the earth. Hence 1t is pre-
sumed the lower down we go and the
nearer we approach to the great golden
lakes the more auriferous will be the pay
chutes be and the more numerous, Inc
| Bonanza silver mines and the capitalists
lwho. under counsel of science, have eX-
pended millions in tunnelhng 25,00O teet
Under the outcrop OF the Comstock
mines, show their confidence in TINS Jne-
tory. They calculate on their vein oelng
better aud better for mile in depth.-
Certainly the bonanza pockets, now
yielding twenty-five millions year, are
bettar than those that occurred hlgner
up. 1t is significant to gold miners that
ths GOLD increases more particularly at
the greater depths. At the upper Sec
tions the Coin,tock vein and its bonanzas
: Irich pockets) We're all silver now, at
the lower depths, the ore contains nan
gold and half silver-in value, not III
Weight. The silver being lighter, Is sup
posed to have been sent uppermost
The great hope for gold mines Is IN I'M
nroved methods of milling the ores. or
iO0 parus of metal In the silver ores OF
Nevada 65 parts are realized the re-
manning 80 parts go to waste IN our
gold mines 90 per cent. is the hig9est
average realization the other nan IL
Host. Practical chemistry is striving 70
do better. if but half the present. waste
can be realized it will reopen many an
ahanioned mine. 1t will double the
nrotits of. all gold mining, and IL Will
SOON restore the disturbed balance be-
tween gold and silver by large increase
lin the gold production. AT present no
one goes into gold mining on iower
r 10 90 sintoi exploration of "a new mine
when coin is worth 12 per cent. per an
nun and wages SO a day, when one bears ss
all the outlay aud all the risk, for put
hall, the gold needs a sort of faith that De-
: comes rarer year by year. But the day
9 we can reduce by one-half the loss OF
cold nv defective reduction WORKS all
fhis will be radically changed, and gold
mining will be ranked among the, least
adventurous, most attractive and best
Rewarded industry of the world. s.
BATTEFS - o MS FL Il A.
-lno1rRTs WHETHER SENATORIAL
PRIVILEGES WILL SERVE AS A