152 MINING INDUSTEY. 



statement showing Mining Costs, J)er ton of ore extracted, in several mines of the Comstock lode. 



Mine. 



Gould and Curiy ..,..,.. 

 Savage 



Hale and Norcross 



Chollar-Potosi 



Chollar-Potosi, including prospecting . . 



Imperial, (Holmes mine) 



Imperial, (Alta mine) 



Imperial, additional cost in sinking new shaft 



Crown Point 



Kentuck ........... 



During fiscal year ending in — 



1866. 



Per ton. 



$7 86 

 18 06 



5 99 



3 63 



5 27 



I 34 



8 97 



1867. 



Per ton. 



$11 35 

 7 91 

 9 08 



4 48 



6 39 



3 54 



4 36 

 I 56 



7 50 

 9 22 



1868. 



Per ton. 



$7 21 



4 24 

 6 93 

 4 74 

 4 96 

 2 36 



9 85 

 9 81 



1869. 



Per ton. 



$7 29 



8 go 



4 30 



7 94 



4 73 



9 80 



8 67 



The following statement shows the detailed costs of mining, per ton of 

 ore extracted, in the Gould and Curry mine during two years. 



Tons of ore produced 



Cost of officials 



Extracting ore 



Prospecting and dead work .... 



Accessory work 



Improvements 



Total cost of mining 



Additional general expenses in Virginia 

 City and San Francisco, 



Year ending Nov. 30, 1866. 



Year ending Nov. 30, 1867. 



62,425 



9 



24, 940 





Amount. 



Per ton. 



Amount. 



Per ton. 



$13,254 00 

 193, 822 72 

 131,697 09 

 113,846 46 

 38, 502 25 



$0 21 

 3 10 

 2 II 

 I 82 

 62 



$4,010 00 



106,625 25 



121,097 60 



35,865 87 



15,431 81 



$0 16 

 4 27>^ 

 4 85?4^ 



I 43?4^ 

 62 



491,122 52 



7 86 

 92 



283,031 53 



II 35 

 2 13 



8 78 



13 48 



The following is a similar statement, prepared from the reports of the 

 Savage Mining Company, showing the detailed costs, per ton, of production ; 

 to which are added the cost of reduction of the ore, the average yield, and the 

 profit of each ton during three years. 



