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• <br />+ ~ <br /> ! <br /> ~~ <br />~ <br /> <br />~ <br />~ ~.~ • <br />~ M•I S I a-(} '& LS I$ E ZS E T H O D S- Contin. <br />~ y. <br />~~~ <br />i j,.'., Daps but the balance of the tunnel requires no timbering ae <br />.,~~~ { it has beon driven through solid rock. The timbers a <br /> <br />':~, <br />S~~ ~ re prepay- <br />ed Dy.hand Prom red s <br /> <br />}~ <br />yy <br />P' pruce and pine, are in good condition and <br />i.~.~ 1 . <br />~ auffioient to sooure safety, The only active work oarried o <br /> <br />~" <br />i <br />. n <br />oonaiata of extending the tuned , <br /> <br />; ~! <br />- <br />,~(' <br />' <br />~i The tunnel is not provided with a tire- <br />i <br />4(~1 <br />' <br />~ t proof door that <br />osn be <br />} easily olosed Yrom without. Reoommendations h <br /> <br />~~ <br />~ <br />;~`>,~ <br />~ ave been <br />givon to provide the.aame at <br /> once, <br />~, <br />~~ ~ 'I <br />I <br />J <br />The method of ore extraction is with Loynor machine <br /> ~' <br />I ~ <br />~ <br />f ~ ~~ drills. Ao hand drilling is done. <br />~ , ~ <br />• <br />~ ~ ~ : IInder <br />{.'round tramming is done with nulea attd <br /> <br />~I <br />€ <br />'jl~ atoel oars. <br />The ears.nre made in Goorgeton <br /> <br />+~ <br /> <br />~ n, Colorado. The traokaCe is 24" <br />p},; ~ <br />! guaE© and 16~ T rails, <br />i ~ <br />, <br />'~~ ~''' <br />} '~~ <br />; <br />The anoiurt oY water to be doalt with <br /> <br />' <br />~ <br />, <br />;~ causes no inoonven- <br />ienoo <br />~ <br />f , as the natural system of drainage in <br /> <br />: <br />:, <br />; ! employed. The tun- <br />eel hoe <br />' <br /> <br />i k <br />~ ~ a unii <br />ora grade of lq'o. <br />~ <br />' ':!' <br />ri ) <br />~~ <br />li <br />Vontilatioa ie through u 13-in. pipe and <br /> <br />'' <br />, '~ a suotion fan. <br />Tho tan is run b <br />t <br />>f <br />' Y wa <br />er power, Ao noxious gaaoa aro met with <br /> <br />~~:~ <br />i <br />'~~ - <br />' <br />~ . <br />All old timbers havo boon removod Srota <br /> <br />~ <br />, undorground and <br />the sanitary conditions•aro <br /> <br />,~ ~, good. <br />~~~ <br />~ ;~ <br />F An additional exit is provided through an <br /> <br />'1i <br />'+ <br />,~ <br />; upraise asdo <br />to tho surtaoo sad at <br /> <br />}~ <br />~ n point 140' trop tho portal of tho tua- <br />~I <br />~~ i nol. Tho upr~iiae is 40~ high. is ke t <br />P in <br />,... <br />,;i'. <br />I <br />~ good oondition and <br />Proporly orluippod with nato <br />a© <br /> <br />° , <br />curo and aaoosaible laddora. <br />ai <br />i+ <br />~~ F ; <br />, <br />' s Candlos attd oarbide lamps are used Yor 1lghtiaE und <br /> <br /> <br />~ <br />~ <br />t <br />i <br />1 or- <br />ground. <br />~fi <br />. <br />~ . .. <br />a <br />~ <br />+i ~ .~ <br />~ 3 T A T I S T I C 3 <br /> <br />,, . <br />~ <br />a <br />$ ~~ Total numbor of toot in t <br />unnole, 4 <br />900 <br />~ <br /> <br />~ , <br /> <br />i ' , , <br />.. <br />" " " " <br />rr dri Its <br />300 <br /> <br />++~ '~ <br />E> <br /><< <br /> <br />} <br />~ , <br />. <br />" <br />~~ " ° uprr~iaes, 40. <br />• l~ ~ Coat of devoloPMOnt pct-root net titan. <br />~~ <br />' <br />I' ~ ~Preduotlon oT ore cone. <br />' <br />, (} 3; 'ti <br />z ,. <br />}i't~ ~, ~ <br />Arvrage gout or eteol <br /> pot south <br />SfO. <br />