The sun. [volume] (New York [N.Y.]) 1833-1916, 1877-09-10
THE BONtNZI MINES.
The Recent Yield aud Prospects OF the Com
stock Lode.

from ne Engineering dfd Ntathg JfUhnt
In spite OF the depression ia Comstock
shares. operations on that vein proceed with ~
mu II prrsist"n.y and regularity. as II "a'h
mine were IN. bonan1a. In the commercial
pages Of the Journal Will hc found the usual
weekly report from each Of the more prominent
mines: but Ms these roports are prepared more
Tor tho examination Of brokers than Tor thu or
binary reader. II resume Of the operations On
the great lode will not he without interest
More interest II now crntrlng IN III" Sutro
tunnel than on any other mining work in the
d strict The header OF the Sutro is now lrss
than 1900 feet from the work. ngs on the Slviusr
mine. and the nois" Of blasting Is plainly heard
10y the workers in each This may seem i'm
probable to MANI. for 1000 feet OF rock ought
10 make n formidable hurri"r for sound hut II
il 10 be remembered. first that the header of
Sutro is about $1,000 feet from the mouth, and
that a stratum or cylinder Of air OF that length
furn shes almost M Formidable an impcdiment
for the transmlsso OF sound M the solid rock
and second, that the blasts IN the tunnel are
very heavy. consisting generally al the eNplo-
sion OF about dozen holes simultaneously.
The tunnel II progress NJ al IN" rate ut IN feet
per day. II has already passed out OF the por-
phyritic last country rock OF the 'ninstork. and
il IN creNicr or vein material, showing that the
lode IL an enormous one IN depth. lnhsmu'h
ns several Of TIA" great bonanHas Of the mino
nave been found TAR east 81 what was formerly
called IN" eastern limit ol "a" ledge. tllri'' arr
well-iOundcd auilcipAiions that before th' saw
age working are reached some very important
discoveries Will be made.
when the Sutro tunn" does reach the great
Nevada mine. II Will ina itself nearly SUI l"l
above the deepest workings in the mine, VIZ.
depth OF ZOO feet over vas, area OF the lodi"
however the tunnel level Will bc below all work
ings, ana VIII no doubt prove great ala IN al
future operations.
The great Bonanza mines. the California am
| Consolidated Virginia, are maintaining com
bined yieldof about two aud II quarter mi lion'
| monthly The reserves OF ore 81 in sight arr
enormous. and surprising thnt n. ilrm con
| trolling the mines does not 'urthil thelr norma
yield Tor the purposes OF stock Joining, there Il
| no fear OF any cessation of dividends for yeal
| 10 come The two mines are now turning GU
| 900 tons of ore daily. At the lowest depth ut
tanned on the claims, 1850 feet. the ore BODY
| still shows inely. aud III It's upper part many
! Thousand tons are still untouched.
Bncher. Chollar. Ophir r, and Justice are tn
! other main producing claims on the vein. Ihe
Total daily output amounts TO p1o Tons. whicl
| months 10 come, IL not indefinitely. All ia,
other mines on the belt together ARE yi"ldinl
aOou, 100 tons daily. 50 that the tota produc
from Virginia City amounts to not less thai
| 900 tons per diem, IN
Bcchcr. which few years ago was mnTnih
cent bonanza, il still paying expenses Ueldlnl
| 81 tons daily. and which furnishes the means 4
continue prospecting for new chambers oi MN
eral. As yet there have been nonew discoverie
of note: but If the work Is persisted ~ as Their
| is no DOUBT II will be. the mine will again b.
In Ophir' Which ndjons the bonanza mines
there were recently reports OF II great strike
but il has since been denied. The mine 4
yielding u small quantity of ore, and shows n
several points in its deep workings exceilen
Chollar. the steadiest produc Of ore for som
years past is turning out 90 TO 100 tons daily
worth t22 per ton. Al this comes, however
from working near the surface. The shaft oil
this mine Is between 800 ana 900 ieet deep.
from the whole vein was &i7 900 900 This cor
responds to value Of about $40 per ton. This
however. is the mill valuation; the rctus
| average assay OF the ore mined would rcac
| nearly $lUO as the mills on the CoMstock ar
not saving over 10 per cent.