150 MINING INDUSTRY. 



Quantity and Cost of Materials consumed at the Savage Mine, &fc. — Continued. 



Materials. 



Borax 



Hay - - 



Barley - 



Bran . - 



Oa*. - - 



Water . 

 Sundries 



lbs 

 lbs 

 lbs 

 lbs 

 lbs 



Quantity. 



123 

 20, 103 



705 

 4,698 



8,153 



Extracting 

 ore. 



20 35 



2, 510 00 

 114 63 



Prospecting 

 and dead 

 work. 



7 12 



118 II 



53,406 61 



Accessory 

 work. 



16 00 



450 31 



40 54 



193 97 



405 86 



2, 510 00 



8, 430 86 



Improve- 

 ments. 



Total cost 

 value. 



23> 394 31 



51, 811 57 



6,479 65 



9,426 00 



43 47 



450 31 



40 54 



193 97 



405 86 



5, 020 00 



15. 143 25 



138, 038 49 



1 Wheelbarrows and cars manufactured at the mine and cost included in the items of lumber, iron, 

 and labor. 



Cost value of materials on hand, July i, 1868 $21,340 01 



Cost value of materials on hand, July i, 1869 23,527 67 



Under the head of " Sundries" are comprised foundery work, repairs to boilers, pump fixtures, steam 

 feed-pump, valves. Babbit-metal, screws, gas pipe fixtures, packing, cotton waste, sulphate of copper and 

 of zinc, wire, hose and hose-pipes, gum coats and gum boots, tar, belting, paints and oils, jack screws, 

 circular saws, hardware, &c. 



Costs of Mining. — The cost, per ton, of mining ore in tlie mines of 

 the Comstock lode may be seen by the following statements, prepared from 

 the reports of some of the leading companies, whose accounts furnish the 

 desired data in the most available form. 



The first statement presents, in one table, the mining costs of several 

 mines during three or four years. These figures include nothing for milling 

 or metallurgical treatment ; they apply simply to actual mining costs or ex- 

 penses incidental to carrying on the business. In this respect it must be 

 observed that the apparently large differences between the figures of the sev- 

 eral companies, as, for instance, the Savage and the Imperial, are chiefly due 

 to the difference in methods of presenting the accounts, some of them includ- 

 ing in their statement of costs nothing more than the actual expense of mining 

 and extracting the ore in question, or of such dead work as actually apphes to 

 that part of the business, while others comprise the additional items of pros- 

 pecting, opening new ground, repairs, improvements, ofiice labor, and aU the 



