The San Francisco call. [volume] (San Francisco [Calif.]) 1895-1913, 1895-05-12
ON THE OoMsToOK.
Weekly Reports of the Various Mining
Superintendent.

Weekly Reports of the Various Mining
Superintendents.
VIRGINIA CITY, New, May 11.-Fol-
lowing are the regular weekly reports of
the various mining superintendent on the
Comstock lode:
Con. CAL. & VA. MINE-1650 level-On the
ninth floor (the first floor above sill floor of
this level)-the drift running south from the
crosseut running east from the drift run south
from the south end of the stope has been ex-
tended 25 feet, total length 90 feet, continuing
in quartz formation assaying from So to So
per ton. On the twelfth floor the drift
running south from the east crosscut has
been extended 13 feet, total length 1872 feet
in low-grade quartz. The upraise started in
the drift running north on the fourth floor
from the opening which was made from the
drift run south from the end of the east scross-
cut from the main north lateral drift on the
sill floor of this level has been carried up
feet, total height 20 feet; top IN low-grade ma
terial, assaying 81 and $50 per ton. On the
fourth floor we have opened out to the east a
distance of feet in quartz formation assaying
from $40 to $15 per ton. 1850 level-The OPEN
ing started from the upraise carried up from
the north drift from the east crosscut on the
fourth floor above the sill floor of this level has
been extended southwark on the fifth floor 10
feet, total length of opening 80 feet by feet in
width. and on the sixth floor it has been ex-
tended southwark feet, total length 10
feet by feet in width, the top being
in ore averaging $50 per ton. From all these
openings we have extracted during the week
/ 56 tons of ore, the average assay value of
which per m1necar samples was 500 I3 per
ton. The drift running southeasterly on the
sill floor of this level has been extended feet,
total length 10Y feet. From the end of this
drift an upraise has been carried up Is feet,
the last z feet of which was in ore feet wide
assaying on the average $65 per ton. Have
shipped to Morgan mill 546 tons and $40
pounds of ore assaying per railroad-car
samples $50 n per ton. The average assay
value per battery sample of all the ore worked
at that mill during the week $500 tons) was
$5S 81 per ton
CENTRAL TUNNEL.-25O level-The crosscut
running west from the main south drift from
the bottom of the Wine sunk from the tunnel
level at point o5 feet south from the Wine
has been extended % feet, total length 142
feet, in porphyry, clay and quartz OF low as
say value. Tunnel level-The old crosscut run
ming west from the end of the drift run north
from the end of the west crosscut from the
north drift from the Mexican shaft has been
extended % feet, total length extended 149
feet: faceiin porphyry, clay and quartz with a
little seepage of water. The old north drift
from the top OF the upraise carried up 46 feet
above the tunnel level near the sta ton of the
Wine that connects with the $50 level has
been extended during the week 16 feet, total
length reopened, 1873 feet, in quartz formn-
ton assaying 81 to SIS per ton. From this
drift at point ITO feet in from its mouth we
have commenced working upward in lorna
$40 per ton.
MExIcAN-1465 level-The north drift started
from the top of the upraise, which was carried
up As feet above the sill floor OF this level, at a
point 40 feet west of main north lateral drift
100 feet north from the south boundary of the
mine has been advanced % feet, total length
353 feet; face in porphyry, which shows mar
row streaks of quartz. AS joint work with the
Ophir company are making repairs in the
Ophir shaft on the HOO level and upward.
UNION CoN.-9O0 level-The west crosscut
near the south boundary OF the Union
Con. mine from the Union Con. south lat
eral drift from the west drift 1920 feet
west Of shaft has been extended II feet
curing the week, total length 1877 feet; face
in formation of hard porphyry. The
drift started north from east crosscut at a
north lateral drift which was run from the
joint west drift from the shaft has been adj
vanced 20 feet, total length 20 feet; face in
porphyry ana clay
point $40 feet in from the mouth of the Layton
tunnel was advanced 80 feet during the week,
total length 10 feet; face in low-grade quartz.
During the week We have started a west cross
and advanced the same IS feet, the face of
which is in quartz of low value.
ANDES-420 level-The west crosscut from the
end OF the south drift from the east crosscut
from the upraise advanced 10 feet, total length
ll5 feet; formation porphyry. This drift will
now be stopped and we will prepare to cut out
Tor an upraise on the 420 level.
OPHIR-1465 level-The drift running north
from the top of the upraise, which was carried
up 80 feet above the sill floor OF this level from
a point in the east crosscut from the main
north lateral drift has been extended 10 feet,
total length 327 feet; face in porphyry and
quartz OF low assay value
BEST q BELCHER-250 level-All work on
this level during the past week has been on re-
pairs to the north Drift 500 level-The south
drift started from east crosscut /, 140 feet