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MINEBK00482
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MINEBK00482
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Last modified
1/5/2009 9:02:45 AM
Creation date
11/18/2007 12:07:36 PM
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Mine Books
County
Boulder
Volume
14
Document
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A
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s i <br />Amerloan - 6. - <br />i <br />i <br />{ <br />T fl T. 2f 0 E: Td T Ii E li E T FI 0 D S- Oontin. ~ <br />Thorn nro no, ohttiSOe. and buokota nra londoft b,r hatnfl. Tha II <br />ehaPt 1s nos being aturlc. Tha shaft ie aaoured on all aides b;/ ,. <br />pillars oP grottnd anPPl,olanS to soottra uuSaSir and 1ava1'atntlona <br />s. <br />nra provided with pnasnge-way around working ohnPt. <br />Tha method oP oro oxtraotion 1e ovenc~und atoping wind flrirt- <br />ing by ur®nna oS Su111van and ?attgh muohine dr111a. Soma ainglo <br />g. <br />hcad dr1111ng to done. <br />TSmbara era prepared by hand Prom pino rind rod apruae, nro <br />1n Pa1r aondlSlon rued auPPialenC to aeattra aeiPeLir. Sttt116 bnokod <br />erlth 1ugging 1a She method omployod. <br />T7nflergrottnd Srcunming in done bir hand with ataol buokota ,~ <br />and wood tro111ea on a Sraakago oP 16" gangs and 8~ T rails. ~ <br />Var„ 7.1tt1e water 1B onoountored and it Sa oae11;F handled <br />by means oP n barrel. ~' <br />Ventilation 1a nntttrnl and auSPiolenS and no noxious gasoe ~ <br />nra met with. <br />8anltary ooaflitlonn are good and all old tlmbora and flobrls ; <br />have boon ramovod Prom ttndergrottnd. <br />Candles are uoeft Por lighting unclarground. • <br />5 TAT T 5 T T O S i <br />I ~ <br />', Avarnge Sonnnga por month, 10. <br />AveraRa value oP ore par ton, c~`100. <br />Oost per ton ~CrcucsporSing ore, t2. ` <br />j Coss Por Son SraaSing ore. ~9. ~ ~~~ <br />I Avaraga Doss 'l~or month oP powdery ~?.00... <br />j Avarnge ao.st par month oP Pu91. °~].0©. I ~i <br />Avarnge aoet por month oP Simbor, ,;~L&. <br />Average ooat oP stool Par month, X12. ~:' <br />Avesnge ooat oP oi1 Por month, ;~®. {~ <br />oost tranaporSing ouppllea to mind 1noludad in nbovo. <br />I <br />ToSa1 nurnbor oP Poot in nhnPSu, 400. <br />i <br />___, ..._ .._ _,...~~J..,,..f <br />_:. .i <br />
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