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<br />~~ ~ a ~' i~ih, are attachai to oaga; oage guidee are 4 fi 8 Oregon p1ne,
<br />;~ I, E i~j { ,I bolted to shaft, Shaft at all stations is provided o+ith
<br />i r~~~' guard railaraad is seoure3 by pillars of.ground upon eaoh
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<br />~, i ~~~r,tt aide suYfioie¢1t to insure 'safety; all wi.AZee or•mill holes
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<br />i~ ~ ~~~ are covered or surrounded with guard rails; bulkhead 7a
<br />;(~ f i ;' ~ Plaee3 in shaft over shaft men No tunnels now used in
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<br />y . j i ~ , ~ ~ i mining oPerat inns.
<br />II14 ! i
<br />Ili{'4 i', MIRE METHOD: Drifts, raises and over head filledsSopes
<br />p~I jf ' Leyener and t"augh Maohiae cii111s are ergnloyed,in various
<br />'" amber
<br />~ • I i~~ ~ ; sizes. T ing• by stulie and lagging, square sets; and i.s
<br />~~ {II auffioieat timbers used ohiefly red aPruce and pine~it!
<br />;i:, l.l~ good condition; Inclined. plank ohutes,aupported by atu118,
<br />~'~~ ~ ~ over tracks are used~Por load
<br />'i ~ ing, Underground tramming by
<br />j ;. ~ , ~ ~I ~ men on1Y. Truax ore cars are used hol
<br />,~ ~ i ding 2,000 lbs. Traok-
<br />,,I I II age 12 lb,ateel rails, 18 ln, gage, Mine is drained by
<br />,;~+~~;''I' tunnel below deepest levels and is suffioient, ooeaeionally
<br />i ~~ ill, ~,., ~ noaious gases az•e net with,ortrbon dioxide, A11 old timbers
<br />~{~ sip have been retwved from underground workings, Shafts •are
<br />I~!~,~{~ j1li,I divided into three oompartmenta and have ladflerways safe,
<br />~I~' ~ assure and accessible
<br />" II {~Iy ~I ,wttioh oontain air Pipres,arid at
<br />fl '~ `'~I ,~I Nioholis rfltaft laddorwa a are
<br />g. ~ I ~ y Provided i~bbbtd~ by landings
<br />f ;~?',ii: ~'` not to eaoeed 20 ft. apart;and them era several winzas
<br />~I."'I~I'~ and ma~ays oonneotitig s
<br />i~i~ j 'I,; level ,and at least one is kept in
<br />~, ~ il,~ i~ , repair and equipped with ladders. Mine has more than one
<br />~II!'fil ~~,~ exit for; employes; two workings shafts oonneotod on five
<br />i ~III,~~ levels,boaides raises winzas and stopes,ond all aro readily
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<br />~i {! I aoooasible for etuployoe, Light
<br />~ underground by oandloe
<br />' 'J~ `I ,I and oarbida lame; eleotrio 1
<br />~ EII ~I I fights at shaft stations.
<br />' ,'~~i~~ 3 T A T I 3 T I C $~
<br />~I~1 Average tonnago for month '
<br />3b00,
<br />' '~ DEVELOPIIEIJT
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<br />~'~ ' Total number of Poet
<br />' post ~ shafts
<br />'I ~ IIII Per foot from $7.0 to $60~ 6730
<br />„II .,I
<br />' Total number of feot 11I tunnels or edits
<br />Coat Per foot $16.
<br />4600
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