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-3- <br />about 200 feet from shaft. The de~•ise for thawing powder <br />I~, #'~ is a double hot water boiler. <br />•`•`I btI NI N G AND MI NE METH 0 DS. <br />;~;~ The main opening is a shaft 143 feet deep. Work is <br />j"~•~ carries on ~,t. the present time in the 1434 toot level <br />north. Men are lowered and hoisted by hoisting machiner7. <br />About 200^ pounds are hoisted at one time Por a distance <br />of 143 feet. The cable is new. The cage hook is fastened <br />tlx:?ii <br />rdr~a at. top oP head frame. The cage is equipped with safety <br />, <br />';~~~ <br />clutch, which is tested every week. The materials are <br />~E M~,.;~~ <br />~ hoisted only 8rom one level. A 3~8 inch rope and bell <br />~! G1 <br />i <br />I~t~ are used for signalling. Code used is the Colorado <br />~ <br />hi , ~; <br />` <br />}~ Code. These signals are posted in engineroom, collar oP <br />. <br />f <br />,~ <br />"'" <br />., <br />I~ ~.~~t shaft and at each level station. Persons are allowed to <br />~'' <br />' ride on loaded. cage. The skid way for the cage is 4 R 4. <br />~;- ~ <br />;;,~ <br />~k anc~. mill holes <br />-.i All winzes <br />/are covered and surrounded by guard rails. <br />~ <br />r!' <br />~'~ , <br />` <br />' <br />~ The method of ore extraction is overhand atoping, with <br />~ (' I <br />~~ <br /> <br />i•~~ I; <br />' <br />` 1 Ingersol and 3 "'augh stopers. The method oPtimbering <br />.. <br />~. <br />~:~~ ~ <br />is stubs and souare sets. The timbers are pine and ~:pruce. <br />~-~~~.~ Steel cars are used in tramming. Ari electric pump is used <br />I <br />f <br />:P ~ <br />I <br />I i in draining. The system of ••entilation is n?tural. <br />I <br />yy , <br />~f'0~'~'' <br /> <br />The shaft is dirided into two compartments, one ladder- <br />(,`, ~,~, <br />~~~"~~' <br />i way the other for cage. The ataa~ the -ir anfl water <br />:;..l, ~ ~: <br />f <br />~,r~:;~~~ ! <br />4;; ~E~ Pipes are in the ladder way. Landings are 20 Peet a Par+. <br /> <br />;I; <br />`! ~ ~ The tiro lerels are connected b~• manna?+s. Electricity <br />,.', <br />,. <br />' " <br />and candles nre used for lighting imflerground• <br />`'l~ <br />i <br />} '~"' <br />YI <br />S T A T I S T I C S. <br />I~ <br />. <br />~~~ <br />~ <br />Tot21 number of Pest in shafts 240 cost <br />per Pt. $100. <br />~!f <br />. Tot fll number of feet in tunnels 2000 cost per ft. $20. <br /> <br /> <br />' Total number of feet in lerels 5000 cost per eft. $30. <br />~ <br />~~i Totai number of feet in cross-cuts 250, cost per ft $25. <br />'~~ <br />'~~ Total number oP feet in raises 250 cost per ft. $75. <br />~ 'I Cost of fuel $12.00 per ton. <br />~~, Cost of timbers $.08 per foot. <br />~'~ Cost of <br />