Eureka daily sentinel. [volume] (Eureka, Nev.) 1871-1887, 1877-02-07
THE GREAT MINING SUIT.
Eureka Consolidated versus The
Richmond Consolidated.
TESTIMONY OF A MINING EXPERT
Veins and Their Surroundings.
FOURTH DAY.

lS6O; am by profession q mining engineer and
metallurgist; have followed it pr professionally
for 81 years; commenced tho business in jan
uary in 1856; was educated under Professors
He'll, kamer, Coldbar and Ksrl. at the Poly
technical Institute in Hessia and the Uni
versity at Marburg. After leaving these in
stitution, l went to England and worked rs
practical chemist one year; then wentt to Ger
many, and afterwards to America; have ex-
amined mines in tho Hartz Mountains, and
tho coal minos of Lacashire, England, and
various other mines in Europe; also, many
mines in Arizona, Lower California, Califor-
mia and Nevada; my principal field in Ne
vada was the Comstock. and mines in Storey
and Churchill counties. | keep an office in
San Francisco. WHARF my business is to de-
termine the most feasible method. of benef-
citation OF mines md metals. | commenced
to examine the X X, Eureka Consolidated
and Richmond mines on the 18th OF January,
1877; entered the Richmond shaft and exam
ined the ST. 9th, 9TH and Sth levels; entered
the X X shaft and examined the I'd, 3D., 5th
and 9th levels; entered the Eureka Console
dated shaft and examined the I'd, 5th, 9Th.
9TH, Sth, 9th and 10th levels, altogether a
lineal length of z, 200 feet, in n general :. s. f..
directions; in all th:se levels, and all this
ground, | noticed a mass of metal-bearing
mineral, which appeared to be EMBEDDED or
inclosed within quartZlte. and divided from
ing mineral vein, appeared TO have on the
suriace a width Of 800 to 1909 fl; changing.
lower down, to a width Of 800 to 100 IT,, an at
the lowest point visible, a width Of 200 f.;
i~nclosed within this mineral | found various
ore bodies, which, to my observation, were
not standing in connection with one anoth n;
the general course Of This metal bearing
vein was S. Of u, varying from 5 10 Dig. E., S.
ID dg; b., ). 20 Jig. b.; its course is al most b.
and W, varying ~. and 5. 20 Dig. | found the
foot-wal ON tho Sth level of tho Richmond
about 30 fl. in u NE. direction from the shaft;
in the 7Gh level, about 40 II. in an cas- orly d-
rrction from the shaft; | did not make any
note OF seeing il on the 9th and 9Th levels;
level; its course was about n. 30 Dig. W., with
a dip to tho W; on the It'll level tho foot
wal was running E., b dg. s., and dipping to
the NE. In tho 10th level of the Eureka
Consolidated the foot-wall ran nearly L. and
W.; e., 10 d.. s. in one place. MAP A here
shown Found the f~oot-wall 80 1t. SW.
from Wine, that COOS from the 9th lsgel 40
Y, approximately. 10 a 81. direction from
did not take $ course; its dip was nearly
that Of tn, 10Th level; next saw foot-wall in
the cross-cut Of the long westerly dri I, half
way between the point last designated
on tho map in the Lawton SHAFT: the course
of cross-cut was nearly at righ angles; il
must have run in a SW. direction, and is
marked on tho map foot wall 9Th level, 80 1t.
deep; raw the foot wall oil the 9Th level in va
rious places, and noticed that in all plac 70 it
did not have a regular course; in some drifts
OF the 9th level, the foot wall made a lunge
out to the eastward. and showed II different
course; in II \ w. direction from the shaft, for
a distance Of go # saw tbs quartzite have
different courses; 1T showed a great deal OF
irregularty; next saw foot wall on sth level,
10 Il, wo.terly from the shaft; took its course
rs L. o dg. =, marked on tho map as foot
-at A+E t.n.1 Am % Ian nt-. r@ss-h
ths mi ae in a westerly direction, SON ewhat
N. OF W, / found quaTtzlie, and took its
course S ID DIG. f.; 1t had n \ 4. dip If 20 DE-.
Point marked on map, foot wall, Sfh level,
so fl. deep Saw foot wall on 9TH Level, 10 (.
N. of shaft: its course was E., Il Dig. s.; its
dip was 80 Dig. N; | don't renemb Der how
great u length Of it was expo ed, indi 'ated on
the map MS foot wall, 7th isvel, 90 It. deep;
next rec0llect seeing 1t at tho quartlite on
tho same Lowell. but don't remember the
course, dip or place; saw quartalte on tho 9th
level, and walked up on vein matter TO the
9Th level through u winzc or opening; tn =
opening was IN the west portion OF ths mine;
| saw quartzite on the 9TH level. and was sat.
isied that it had its regular course n little ).
of b.; saw foot wall in the west portion OF the
81 level. took its course In two places E., II
Dig. s, with a dip to the Nj; In the western
portion Of the 3D. lsvel showed Irregularities
seeming to have an u. course, with variation
to the s.; saw the foot wall in the I'd level Of
tho X X; | took its course b., 10 Dig. N, with
u dip TO the n. NV. of 10 dg.; on the same
level OF tho X X, in the pbenix ground, its
course was n, IS Dig. w., with a dip Of 81 dg.
n. Of Il. between the two places noted, and at
Il distance Of 200 #. ca .terly from tho shaft;
on tho Sd level Of the X X did not note place,
course OF dip; on tho 9Th lsvel of the \ X,
about 100 II. Il. of shaft, its course was Il, ~
Dig. =; dip to the Me-; on the 9Th level of
tho X X. its course WAS W., 10 dg. -; dip not
noticed: saw it at various other places; think
/ saw it on the surface to westward Of the
1 I.u-. n-o,-. ~, NJ e,1a Of " tnu III tlls 90
width | did not notice; its general course on
the sur ace was nearly Il. and W.; L call
quartzite the foot wall, because 1t underlles
thu metal bearing vein; the Irregularities l
observed were not Sufficient to cause me to
doubt its being the foot wal of tho vein; |
observed ho hanging wall, as l called 1t, In
| the l. lreka CONSOLIDATED 10th lsvel, at a
| point 207 fl. Mt right angles with the foot wall;
general course b., 10 Dig. s., tho hanging wal
was exposed a length u 5 or IT,; there was
a drift between foot wall and hanging wall;
| the course was nearly in a straight line from
one wall to the other; | saw haoging wall in
Boil shaft tunnel, about 30 II. from the mouth;
general course f., 30 Dig. b; 1t has \ dip OF %
dg. N. from the horizon; saw it in the Rich.
mond hanging wall of tho 18th level exposed
in one drift 10 II. IN length. running alb 'ut
80 1t. In u +. direction from the sh at; next
saw it in an almost e~asterly DRIFT in same
level, an in winze running from 7th to Sth
level: the ond of DRIFT IS In clay and shalo
for 200 IT,; showsi it, with few intervals, for
go or 30 IT.; its course would average H.. 70
80 and 40 Dig. S.; next saw it on the 9Th level,
mt the extrsme north end of it., VIII ,rc II
crosses the DRIFT; course E., 20 deg. s.; dip 40
dg. S {: did not see the wall, but saw the ma
terial that constituted the wall on the surface,
SO or 80 #, from tho Richmond shaft, be-
tween tn, Richmond offics and another huild,
ing there. | saw tho hanging wall in thu "a
level of the X X; its course was H., 10 Dig. N;
saw tho clay aud shsls ut that point 3 II.
thick; also, on tho Sd level, running almost
f.. and w.; the hanging wall is composed o.
clayey matter, and a clay shale at its limo OF
contact with limestone: it is plastic, showing
motion; ! saw tho iacs Of limestone on the
N Il. slope of Ruby Hill on the surface; saw It
under grou d, whore i. was worked through
at tho Sth Lowell Of the Ri hmond; It does not
present u smooth appearances; in the Il n
ground it has been worked through to tho "a
level, but no face is to be seen; | think 1t Is
tho hanging wall, because ii Ovid IS the silic-
ious limestone which embodies the orc from
that limestone which | consider to be tbs
country rock; there is "A difference betwees
them; | should judge that the limestone out
side of tho vein was not silicified, nor so mot
a~morphosed us that which constitutes the
vein; tho qualification | could not notice
there were isolated points Of stratited lime
stone in Richmond ground, within thu space
that 1 would call vein matter, on the Sth level
exposed about 80 or A It can only account
for it. presence by stratiied limestone hsins
out of place and broken thu ough from over
Iu--- an,et,y rnok md bacnInA mart and