Eureka daily sentinel. [volume] (Eureka, Nev.) 1871-1887, 1877-02-07

lowest point; the axis 1 call the inclination;
its dip is proved by the planes; the ore bod
les seem to have had their lowest point near
er the footwall in depth than at the surface;
the dip Of ore body is the same as the foot
wall: L could trace ore-bearing matter from
one wall to the other in the 10th level, but it
includes limestone; l did not distinctly SEQ
ore matter in any place from wall to wall; |
was IN Potts Chamber, and on the 9th level |
saw ore; it is my o pinion that it is the same
vein in all three mines, and bounded by the
same walls; l did not oxamina the Gro, pings
on the surface; it had bean werked; on the
ground of the Eureka Consolidated | followed
the heavy iron deposit on the west side Of
Ruby Hill, but it had been mainly worked
out.
Cross-exnmined by counsel for defendant:
l call the ~faotwall of a vein tho rock
that underlies it: IL is not always necessary
has selvages. planes, etc; | call salvage a
/ bbon or band, or small seam or stratum, or
substance, which, n it characteristics, differs
from That rock which forms vein matter, and
often from that rock which forms the foot
walls. L studied under four or five profess
sors whose lectures appartained to mineralo-
gy; IL is not necessary that sewage should
be a clay seam; the selvage on th. Cpmstock
is not syenite or clay: if l find a cay seam
on a polished wall. and separating it from
the Other wall, / .hoald not call it selvags
ii l should find it inside of space that | call
vein; in a vein VIII ch, within itself has q rock
or mineral that is easy of decompos ition or
transition. and it has boon caused by some
nendent of the walls of the vein; they con-
firm all around themselves a so-calied clay
d vision or ~selvage, that would not constitute
At that particular point the wall OF the vein;
sonnet mes; the usual appearance Of the
footwall differs in its character from
the matter constituting the vein by
smooth surface and by ,striation, the
still consider it a footwall grown tight to
vein matter, which is not the case on Ruby
Hill; il / should find a body Of ore lying
on the smooth polished surface, with uniform
course and dip, it would depend upon thu
magnitude of its surroundings whether |
should call it the wall of the vein; | could
not call it the wall Of thu vein if it was ] 200
IT. long, bat would call it the wall Of that
body Of ore; there are districts whore large
numbers of veins cross and intersect. bat
there is always a way to define a vein; when
l lind ore-bearing mineral which l consider
a vein, which has embodied in itself bodies
OF ore. even having. a smooth wall. | would
not call either one OF these ore bodies a vein.
Granite is min raj; there are thousands of
veins running through granite, crossing and
interesting each other with walls. consti ut
ing zones; to prove to ne that they were dis
tinct veins, | should require 10 be shown a
d fl renee of the matter in the main body,
and that which surrounded it; sccoad, that
each one Of these various ore bodies were
formed each one individually: third, tn t
they did not stand in connection with one
another in tch manner as to lead me to be-
lieve that the ores had their origin derived
through one and the same .channel; if |
should find a seam dipping NE. in the lime
stons. polished and stTiatei. and | found no
stridted surface to the b., | should call it the
foot-wall: [ call that in the Bell shaft tunnel
the hanging wall; | call your description tho
of that everything; the foot-wall is
the rock underlying the lode or deposit-a
have their dip in the earth. The diff renee
between pipe and seq regatei v~eins.-[llere
the black board was introduced, and a dia-
gram made by Mr.. Luckhart, demonstrating
the differ .nco, who gave a very interesting
aid Intelligent OK pl ination Of pipe, selr re-
gated. and other veins.l