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Lombard - 8. <br /> <br />'MIIIIIIG co 3&IIIb EdETHODS- Contiri: <br />The ventilation is natural and auYfiaient. Ho noaioua <br />gases'are met with. ' <br />The sanitary conditions'are good and all old timbers have <br />been removed from the underground workings. ' <br />The ladder-way contains"steam and air`pipea and the land- <br />ings do not eaoeod 20' apart. 'The ladders are Eafe, soanre and <br />easily eaooeaible to the employes. ` <br />A number of additional esita easily accessible are provi- <br />ded by means of the upraises oonnaoting the several tnanels oY <br />the group. For a doeaription oY tlio same iefex~enoe is made to <br />description of 'tunnels. <br />bighting underground ie by means of Oarb`ide lamps. <br />S T A T I S T I C S r <br />dvcrage production oY or© par month, 2.000 tons'. <br />Grbas production of ore not given. <br />dvorage assay value milling ore por ton, ,~].3. <br />•" " ^ smelting ° n ^ 80• <br />Cost per ton mining of ore, y+2• <br />Cost por ton transporting erg to mill, 2b~. <br />n n n n " " smelter, ~i~•b0'• <br />~" " " treatment mill ore, b0¢ <br />n " n 'n 6ctClting Ore, ~ t0 q?• <br />•Coet of timber, 10¢ per inch.; , <br />_ " " lagging, lb¢ each. ) Avorago coat por men., X100. <br />" " oil, bb¢ por gal. " " " 10• <br />" " steel, 18¢ poT lb. " " " " lU• <br />" ^ pORdor, ld¢ "• " n w n n 300'• <br />Cost of transporting supplies to mine included in above. <br />Total number of foot in shafts, 'L,000. Coat per Soot, 517. <br />» ~~ " tunnels, 1b.000. <br />^ " " " Dross-outs, 75. <br />„ " ~~ M M upraises, 4b0. <br /> <br />;~ <br />I, <br />I;~ <br />4 <br />