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304 <br />Pozo - 4. - <br />- 9U•RFA CE-PLAHT- Contin. <br />hoot. from falling iri the shaft Wbale dunping: "' ' <br />h" 'i Eleatrloit~ is` need `Poe lig]iting on the eurfaee. . <br />- E% P L 0 S I 4 E S. <br />,. <br />sin <br />ell <br />. ~. <br />Leo <br />California Giant powder - 40°~; Gerna'n Ineoloid fuse; 5-x <br />Daps and wooden tamping bare aro eripl'oyed. Explosives in exaees <br />of one day's'eupply are not"etored undergroim$. The average a- <br />mount of explosives kept in storage is 1,000~:`Thie i•e kept in <br />a-hmall atone b'uildiug'200''southigeet oP the shaft houea end <br />used for the storage oP powder only. All other supplies are ' ' <br />kept in the estgine room: ' <br />The devioe provided 'for thawing'powder'le the Rundel <br />..., ., , <br />Heater'whi'oh is heated'by'meane of hot watery ''' " <br />M I N I N G Ca M I R E M E T H O D S. <br />- The main'opening'is's ahaYt'300' in depth whioh ie'orib- <br />bed with squgrertimbere•'Por a distanas•of 42' from the aurfaoe <br />and the balaxioe `of"the" shaft ie''tiabered~~with'etulle and wall <br />plates baokod with 2=1noh plank: ' <br />LeIIela have been run ae Pollowe: 93-Pt:'1'eve].: we et, Tb0'. <br />143-ft,-'lave].: onet, 100'p west: 20'. 190-it. levolo eflat, 100'. <br />TwentyYeet'Prom the ehnit on tKe "oast eid• in tHo latter 1evo1 <br />a oros~-out is run north 109' to the windeor voin and drtPts <br />are run.en'thii 'voin 29'"eapt and.3B'' west. ' <br />90' additional exit'has'beeri provided but reoomm~ndatione <br />were Bent to the management on'May 6th, 1913 to at'onoe provide <br />one and properly equip the same. ' <br />'Aotivr wark~oarrled'en at the time oi'thie'rapo'rt'ie drift- <br />ing. both eaat'and weet.on the ffindsor vein end sinking the' <br />shaft on the'Poeo'vein'. '' " <br />The method.employe8'Per hoiating•io with air. Ths-men are' <br />raised and lowered with the hoisting maohinsry. A load wiighing <br />i <br /> <br /> <br />