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MINING AND MINE METHODS.
<br />The principal opening• is the Baltimore, ad it, or
<br />
<br /> tunnel, the mouth of which, is just north of the
<br /> main road,
<br />size 8 x 8 ft, in the olear
<br />ru
<br /> ,
<br />nning north 1000 ft, to breast
<br /> ,
<br />the first 172 fjs, of which, ie timbered vrith
<br /> drift, or tunnel
<br /> sets,
<br /> The tunnel is being driven for the
<br /> purpose of cutting
<br /> the veins of the property a considerab]P ~Ar+w ~,._. .
<br /> -r...., ~uereoy ex-
<br />ploring• the ore deposits i
<br /> n an economic manner, with one
<br /> main opening, and one plant of maohinerir,
<br /> At the present time, work is being carried on at the
<br /> breast of the tunnel, vrhieh is being driven
<br />and at th
<br /> ,
<br />e Blaine
<br /> shaft tunnel station, vahere a plant of machinery is being
<br /> installed,
<br /> The property lies just west, and adjoining the Terrible
<br /> Group of TaIines, and the 7-v0 Dives-Pelican Group of Pdines.
<br /> Two 3-1~4 Rand drills (air) are employed in driving
<br /> the tunnel:
<br />nd 60"fo
<br />The method of timbering employed, is the stall drift
<br />
<br />powder set,and square set, using red spruce and pine prepared by hoed.
<br />same
<br />The underground tramming• is done by hand, ~~~~ using
<br />
<br />of one ton end dump Bts3~lcars 12 lb, rails, 18 in, Gauge, '
<br />torage,
<br />The natural system of drainage 1's employed, using a
<br />
<br />l
<br />d water box, placed at;,the side of the traok,
<br />oye
<br />as
<br /> The tunnel is ventilated by extending a 12 in, iron
<br />
<br />essor room. pipe into a point close to the breast, the outer end of whioh,
<br /> ie at the mouth of the tunnel, extending .52 ft, high, At the
<br /> elbew of the pipe, (mouth of tunnel) is inserted a steam
<br />6"
<br /> pipe, supplied by exhaust steam, whioh forms a jet, thus
<br /> creating a vaoum and euolcing• the poor air from the mouth
<br /> of tunnel.
<br /> Sanitary oonditiona are good.
<br /> 'Phe Blaine shaft before mentioned oan 1>e employed as an exit
<br /> in oase anything at the mouth of the tunnel,
<br /> Candles are used for lighting under ground.
<br />
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