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-3- <br />ORE TRFATM~#-T,' <br />Method employed is'stamping and amalgamation and coneren- <br />tratEion, with}~rud'va'nexs and wilily tables. <br />SURFACE TRA~C'3-PORTA-'P I ON, <br />Aerial. ~+ire rope tramway 2,300 feet long connects mine and <br />mill, cost cif t'ranRporting ore from mine tci mill x,05 per <br />ton. <br />E 7C P L 0 S I V E S, <br />Du Pont 40~o powder. ilep~fYt9d Insolaid ZL fuse; 5-x Daps <br />and wooden tamping bars are used. Explosives~in exbess <br />of one day's use are not shored underground. <br />-The average a;~mount of !~xi~losives kept in storage is 2000, <br />This is kept in a hole dug- #~ Sher s~i-de hill »it?? a sheet <br />iron roof 36C feet :Prom pArtal of tunnel and used far this <br />purpose only.. ° <br />The devime for thaw~nR- i.s~ mine- and -smet,er ~i`p'nlp 'Co <br />patent thawe~r, . <br />I~ I N O' A I~ D M I ~T E M lE T H O D S, <br />The main o~reriiny' is a cross' cut tunnel ]:00 feet in length <br />where `it °ta~s the Cumberland vein, From this point oi' in- <br />tersection the stun*?el is driven on the vein for a distance <br />of 750 felt nnz~t"h, this is'wherL all work is carried on <br />at present.. The method of timlaerinp, is stuns covered with <br />lagging, The timber are pine anc~ lbprdee prepared icy -hand <br />and are sufficient to aeeure safety, <br />The method of extracting ore is-overhand stoping and drift- <br />ing by single hand, The ore is taken out from 30 ft, high <br />chutes for loading ore in caSS, they are 50 feet apart. <br />Manways are 200 ft.. apart•'tJ~derground trariming is ddne <br />by hand. Chutes are loaded by hand and gravity, The system <br />of ventilation is naturals,.ThP..tunnel.-1a connected with <br />No. 2 leveY by an upraise with ladders, landings are 20 <br />feet apart,: Al l.o18 timbers have been removed from under--~ <br />grnund and the sanitary oonditione are-good, Candles hre <br />used for 3g~i~ting i:~sderFTtiund., <br />S TAT l S T I C S. <br />r <br />