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-~_ <br />t~I„ISC,. <br />Pewabic ahnft, 800 °eet <br />c~ichardaon " 500 " <br />Iron " 700 " <br />E. Pewabic ~ 600 " ' <br />E.Iron 105 " <br />Air 150 "' <br />Bangor 100 " <br />"B4'* ^. 100 " <br />Grasshopper 110 " <br />"g3" shafts 3'Jp " <br />Between q and 5 miles of drifts and crow-cuts. ltiork is carriad <br />on at present is the Pewabic, Iron, iichardson and Jrasshopper <br />shafts. '.laps cnd drawinra o: the :^orkinas are kept in fu 11. <br />i3on and materinl aro hoisted by steam. 7/8 in. and one in. <br />steel cabloa in good condition. Oalva~ized iron, flexible <br />wire bell line. Employing the state code of signals. Signnls <br />are posted. Zoadinv de••ices are scoop cars and trolleys. <br />All ore is axtractrd by Excelsior machine drills and ainglo <br />hand drilling. Pins and spruce timbers installs cnd drift <br />seta aro used nn::' in good condition, flank gravity shoots. <br />Underground traminp is b; hand with iron buckets and cars. <br />Fi & 12 lb. T rail, lE3 in. rug^o. The r..~erar.e amount of <br />crater is 2,000 pnllons. handl'd by the bni.tor. The v~ntil- <br />ntion is by connec`ion ~^it', the sir^aco and is sufflcient. <br />Thy shaft is divided into two compartm,nts, containing air <br />' pipes, and thara nre three ^xits, iti~ The pewabic and Ric}mrd <br />son shafts are connected. Under~*round li^htiaayby candle. <br />Gross tonnage, 21.~~'~• fverarte tonnage per msskk, 80. <br />Eo. feet in shafts. 3,dC5. cost per ft, 316. Iyu. feet in lovols, <br />20,000, cost per ft. .j5.50, no. ft. in cr:,as-cute, 500, cost <br />I', per ft. 36.50, no. Ft. 1: winzas and ruses, BUJ, cost per <br />', ft. ;y3. po. ft. in de^elopTent, 2h705. Eight machine drill <br />' men, X3.50 per ei^ht hours, two machine helpers, ,~3 per eight <br />i <br />~' hours, 50 miners, rz•75 per eight hours, 3 timberman, 33 <br />i <br />per ei^ht hours, 2 trammers, v2•75 per eight hours, ore <br />i <br />i <br />J ~ <br />J <br />;'~ ~ <br />iii <br />I <br /> <br />