THE GOMSTOCK MINES. 



155 



Statement of Mbiing Costs, including nothing for Milling,^ of the ChoUar-Potosi mine during the year 



ending May 31, 1868. 



Tons of ore produced by 

 company, 70,340.(2 



Extracting ore. 



Sums. 



Per ton , 



Wages 



Miscellaneous supplies - 

 Timber and lumber . 



Firewood 



Coal 



Water 



Ore assays .... 



5205,255 22 

 21,079 91 

 58,189 70 

 9, 248 00 

 1,513 25 

 1,882 50 

 1,153 50 



29^, 322 08 



$2 92 

 30 

 83 

 13 

 02 

 02 >^ 



(^4 24 



Sinking new shaft, re- 

 pairs, and pumping. 



Sums. 



^38,238 00 



10,377 70 



11,080 25 



3,555 00 



I, 736 GO 



I, 200 00 



66,187 33 



Per ton, 



$0 94 



Prospecting. 



Sums. 



$27,024 25 



5,583 94 

 3,984 82 

 2,962 50 



597 75 

 620 00 



40,773 26 



Per ton. 



$0 58 



Statement, &c., continued. 



Sums. 



Per ton. 



Extracting ore, as per foregoing 

 New shaft, as per foregoing . . 

 Prospecting, as per foregoing . 

 Filling mine, at old works . . 

 Dead work at old works . . . 

 Machinery and repairs . . . 



Freight 



Legal . . 



Surveying 



Stable ........ 



Taxes 



Exchange 



Office and house repairs . . . 

 Sundries . 



J2g8, 322 08 

 66,187 33 

 40,773 26 

 10, 843 50 

 12,632 50 

 22,855 50 



3,957 35 

 I, 998 60 

 I, 200 00 

 1,455 89 



15,884 36 



3,571 73 

 2,033 03 

 6, 069 80 



$4 24 



94 

 58 



15.4 

 18 



32.5 



05.6 



02.8 



01.7 



02 



22.6 



05 



03 



08.5 



487,784 93 



6 93 



' Milling costs, per ton 

 Add mining costs . 



Total cost 



Average yield 



Average profit 



a AU run out through tunnel without hoisting 

 i $17.58 per cent, of yield of the ore. 



?i4 75 

 6 93 



21 68 



24 14 

 2 46 



