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<br />I I'',i ,~,` The surface plant coneist's of 1-100 H.P. and 1-200 H
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<br />"~ ~j i,ji I ,1-300 H.P. air compressors: These are stationed about 100
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<br />'' Prom entrance oP tunnel Sn a franc building, 50ft. X 75
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<br />Pt. The other buildings are a machine shop, boarding house
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<br />~ stable and tram terminal.
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<br />Itt1 Pont, 40": ponder, Imported Snsoloid Z. 2.. fuse;
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<br />5-z caps and wooden tamping bars are used. Explo- .
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<br />~ .1 elves in ezcees of one days supply are not stored
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<br />~ underground. The average amount of explosives kept ~
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<br />~ '„ storage is 5000 1bp. This is kept in a Prazse, iron
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<br />+ ~ i co-•ered magazine situate about 400 Peet nest of the
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<br />1 Portal of the tunnel, and used Por thin purpose only
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<br />~ Oils, candles and other combustibles are stored in the
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<br />' tram terminal.
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<br />G~ ~Flili i The device Por thawin
<br />g ponder lea steam heated house.
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<br />~ M I H I 2t 0 AN D M I T~ E u F T H 0 D S.
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<br />~ ~ The main opening is a crosscut tunnel ?.200 Peet in
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<br />~ ~ . , length where it tape tho Cam Aird vein. From this
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<br />jll ~j~~; Point .oP intersection the tunnel is flriven on the
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<br />j I~'I "ems both nays to their $nd linos. nll vein matt9r la
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<br />~ taken out Por 900 feet above said tunnel. The place
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<br />k ' where work is carried on now, la in a shsPt which has
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<br />been etatk 1600 foot oP main crosscut to a depth of 800
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<br />I f9et; this le where drlPt.ing and sto in is carried
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<br />' on at the presenttimo.llost oY the minlIIg is in 21os.
<br />i~~ii ~I ~E I , 4, 5 and 6 1ev91e on tho 99at side of ehft. Tho method
<br />~~~~~~ ii,l ~, ~~~ of ore extraction la over hand etoping end dsitting
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<br />it with air drlilo. Ing9rno11 hamrmr and piston drills
<br />j~li j~1,~' i are used, Tho m9tho4 oP timbering is ntulls eovorod with
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<br />I legEing, Th9 timbara arc ping and spruce prepered.by
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<br />~ hand and sro sufPielent +.o securo safety. Underground
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<br />!} tremtaing is donli by hand an4 gravity and el9otrlo
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<br />I motors. Th9 avat9m oi' vontilation is natural. The pumD-
<br />' ~ ,'i li' Ii ing s•retam in 9loctrlc pumps, 2-100 gallon and 2-
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<br />~ 200 gallon. ]^l9otrioity and esndies are used for light-
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<br />. ~_' ing.
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