The Seattle post-intelligencer. [volume] (Seattle, Wash. Terr. [Wash.]) 1888-1914, 1899-11-11

An work III a mine In OF two kinds-ce-
yeiopment work and stop.nx. Develop
rnent work consists In making pssszges
ascertaining the extent and value OF known
bodies al ore; CD for exploring unknown
territory in order 70 discover new ore
bodies: G) for the purpose 81 facilitating
or increasing the work OF taking out the
Gre Thess passages receive various names.
such a shaft which is a perpendicular
opsning; An incline. which Is che run on
slope: tunnel, which Is On the level
These three extend frem the surface Of
the ground. Within the mine and opening
from Those mentioned or from each other
there are Levels. cross-cu:s. up-raises and
winxes. the latter being a perpendicular
opening cut from one level 10 meet an
other. All this development work may be
done In barren rock without any compen-
satfng ore value, or the ore taken on, may
be Of so great value as to pay all the ex-
penscs and pay a handsome profit besides
More often considerable quantity OF ore
Is taken out which returns something to
the miner. although II does not repay the
entire cost Of development
Any work toward taking out the ore
more than Is necessary for the purpose OF
stopping. The chambers from which the
ore has been exeavated are called the
Slopes, and these necessarily vary IN size
and character with the size and position
of the vein Or ore body
Drifting IN the act Of following along
with the course OF the vein. Definitions OF
other mining terms are as follows:
Adit-open cut tunnel the vei-
AlluHsunn- Materials transported and deposited by
AMaIssn-tiold or silver combined With mercury.
Ap~x-Ths top or highest point ~ a vein.
Anri!erons-Any rock sand bearing geld.
Bedrecf-Roek underlying placer Inines.
Blind iode-Whsre thsre appeasrs outcrop 70 .
vsir-
Breast-The face II a tunnel or drfft
Brscria-Ans'alar rocks cemented together.
Case-An elevator used In hoistins
NJ ring tetn ate
Coliar-Tbe top Of . shaft of winzs
Contaet-A Junction Of two kinda Of rock. such
Contact vein-A rsin between two dissinailar rock
msssa-
Croseent-A level driven across the course OF q
ve4n
pip~Th. ,lop. or pitch Of vein
Fauls-The displacement II stratum or vein
Feeder-A small vein entering into a larger vein
fss,ns vein-A crack in tho sarth's crust contain
Foot waii-Roek hensath . .e4a.
Cash vsia-A vein vide At the top and closing at
Hanging wall-Th. layer Of rock or wall e,erhans-
ing lode
ksrss-A MAS OF rock between the branches Of a
. In piaee-sot having been disturbed from its orig
inai position,
LevsiA horizontal passage in a mine divergins
FROM the shaft
outsrop-Th. portion q a rein showing at the sur.
faee
Pet.rins Giving out; failing
PccketA rich srot In vein deposit.
Sailing q raine-Piaeing foreign ore In the crew
Ices II vein for the purposes u deserving
strks-The extension Of lode In horizontal
direction.
stulsA framework TO support the rubbish when
stopins.
surnEsA hnle In the bottom Of . shaft OF tunnel
for collecting the water.
ysin--An aggregation Of mineral matter In rock
nssurs.
Scam and s;rinscr used INTERCHANGEABLE for
narrow hrarches running on from the vcfn lead.
I%>is-A rein. thus loHn claim Is claim hav-
Ing tn its boundaries vein This term is sometimes
Used to Designate this claim itself