The morning call. [volume] (San Francisco [Calif.]) 1878-1895, 1895-01-20
ON THE OoMsTOOK.
Weekly Reports of Progress in the
Underground Work.

Underground Work.
VIRGINIA, New, Jan. 19.-Following are
the official letters Of the superintendent
Cox. CAL. & VA.-1650 level-We have
continued to stope out ore from the new
ore body above and below the sill floor of
this level from the sixth floor up to the
twelfth floor. On the twelfth floor there
has been no change from what was re-
ported last week in regard to the position
and quality of the ore. On the ninth floor,
which is the first floor above the sill floor
of this level, a south drift has been ad-
vanced A feet. The first SO feet are in low
grade quartz and the last 6 feet in ore
assaying $50 per ton. 1850 level-We have
stopped ore from both sides,of the Wine
sunk from the 100 level, north and south,
from the second floor up to the sixth floor.
From all OF the above mentioned openings
we have extracted during the week 3oO
tons OF ore, the average value of which per
mine car samples, was $4S 90 per ton. We
have shipped to the Morgan mill rs tons
and 290 pounds of ore, the average assay
value OF which, per railroad ear samples,
was S57 % per ton. The average assay
value, per battery sample of all the ore
worked at that mill during the week 1850
tons), was $50 A per ton, closing the run
for January. The bullion shipped to Car
son mint had an assay value OF 800 9U 30
OPHIR-1465 level-The drift running
north from the top of the upraIse which
was carried up so feet above the Sill floor OF
this level from point in the east crosscut
from the main north lateral drift has been
extended II feet, total length "A feet; face
in porphyrv, clay and quartz, which carries
q low ASSAY value. We have continued
Jointly with the Mexican Company the
work of making repairs in the main shaft
from the 100 level upward. Central
tunnel-The northeast drift started at
p nOint so feet in from the southeast drift
on the $50 level of the mine at point
80 feet in from its mouth has been adj
vanced 81 feet, total length Ill feet, con-
tinuing in a porphyry and quartz forma-
ton OF low assay value. From the south
east drift at a point 129 feet in the north
east drift No. has been advanced is feet;
face in porphyry and quartz of low assay
value. No advance has been made in the
north drift from the top of the upraise-
13S feet above the tunnel leYel-as we have
been repairing and timbering the drifts
and openings leading to that point.
UNION CON.--900 level-The west crOSscut
from the Union Con. south lateral drift
from the west drift, 1920 feet west of the
shaft, has been extended % feet during the
week, total length 40 feet; face in a
favorable formation of clay, quartz and
porphyry, with a small flow of water from
1t. The east crosscut, No. 3, started from
the Sierra Nevada north lateral drift,
which was run from the joint west drift
from the shaft at a point 600 feet north
from the joint west drift, has been ad-
vanced II feet, total length 81 feet; face in
hard porphyry. The work of repairing
the damage done during the late snow
storm is nearly completed.
i lsE
ming north from the end of the west cross
cut, started from the top of the upraise
which was carried up forty-hve feet above
the sill floor OF this level, at a point forty
feet west from the main north drift and 100
feet north from the south line of the mine,
an east crOsscut started at a point 149 feet
in from the mouth of this north drift has
been advanced thirteen feet; total length
fifty-one feet; face in porphyry and clay.
AS Joint work with the Ophir Company
we are making repairs in the Ophir Shaft
on the LOO level and upward.
GOULD e. CURRY-200 level-The Joint
east crosscut No. l, started from the bottom
of the Joint incline Winze sunk on our
north boundary, having run through the
quartz, work was discontinued, with the
face in porphyry. We have started from
the bottom of the joint Wine which was
sunk on our north boundary a south drift
and have advanced it u feet; face in por-
phyry and quartz. West crosssut No. 3.
which was started in the northwest drift
432 feet from the main west drift, was ad-
vanced 8 feet; total length 1882 feet; face
in hard pOrphyTy.
BEST & BELcHER-20O level-The Joint
east crosscut No. l, started from the bot
tom of the joint incline Wine in the west
crosscut No. 5 on our south boundary, hav-
ing passed through the quartz, work was
discontinued with the face in porphyry.
The north drift started from the bottom of
this Joint winze during the week was adj
vanced 13 feet; total length % feet, passing
through quartz. 500 level--East crosscut
No. l. started in the north drift, 100 feet
from west CrOSscut No. has advanced II
feet; total leng b 100 feet; face in hard
porphyry and quartz.
SAvAGE-On the 1000 level in the north
lateral drift from the east drift they con-
tinue. to extract ore from the sill floor up
to the ninth. On the 1850 level in the south
drift from the east drift 30 feet from the
south ore slopes we continue to extract
ore Of fair grade. We are still stoping ore
from the bottom of the winze in the south
drift. We have drifted north IA feet on
the streaks of good ore mentioned in the
last weekly report as encountered in the
east crosscut from the south DRIFT. During
the week the work in the mine has been
confined to prospecting and extracting
ore. we nave nOlSUeQ 14S cars OF ore;
shipped to the Nevada mill 270 tons and
milled 100 tons. Car samples average
$33 s. per ton; battery samples average
SO % per ton. The bullion yield for the
week was $2365 so.
HALE 6 NoRcRoss-975 level-We have
advanced west crosscut 1 II feet, total
length 136 feet. The face of this crosscut
is nearly all quartz that yields low assays.
The north drift from west crosscut l on
this level is now out 112 feet, having been
advanced IA feet during the week The
face OF this drift is in low-grade quartz and
clay. We have advanced the south drift
from west crosscut on this level 6 feet,
total length II feet. The streak of good
ore continues in the face of this drift. 100
leyel-We have connected the upraise
above this level with west crosscut l on the
975 level. This connection gives us a good
of air, and will enable us to
prospect between these levels. We have
extracted during the week from the 975
level seven cars of ore, assaying per mine
car sample $63 so per ton.
Cotton in Surgery.
The fact is noted in technical journal
of the already considerable, as well as rap
idly increasing, quantity of cotton fiber