METALS AND THEIR ORES. 31 



and superintendence, the following may express the proper capital and 

 working expenses for extracting the gold from the two classes of ore 

 occurring in New Hampshire: 



Quartz mining. Sulphurets. 



Cost of mine, $5,ooo Is.ooo 



Cost of mill, 10,500 18,000 



Opening the mine, ...... 1,000 1,000 



Total capital, Sfi6,5oo $24,000 



Running expenses. Quartz mining. Sulphurets. 



Mining and cartage, per ton, .... $3-oo $3.00 



Milling, per ton, 2.00 5.00 



Superintendence, say — ..... .10 .10 



$5.10 $8.10 



Should a company be formed to extract gold from the quartz or sulphu- 

 rets, these figures express the capital absolutely necessary for the under- 

 taking and the proper running expenses. Circumstances of various kinds 

 might add to or diminish the amount of necessary capital; but there 

 would not be much variation from the figures given for the running ex- 

 penses. 



It is easy, from these figures, to estimate the income which might be 

 obtained from a single enterprise of this nature. If the ore averaged as 

 high as $19 per ton, as stated by Dr. Rae, the profit on each ton milled 

 should be $14.90. Eight tons were carried through the whole process 

 daily in 1875. That should afford a daily profit of $119.20. Supposing 

 that the daily yield be practically $15, which was the case in the earlier 

 workings, and allowing $10 per ton for the net income, we should have 

 $80 as the daily return to the company, or $20,000 for the year of 250 

 working days. These figures are indications of what the gold mining 

 business might become in our state when properly and economically con- 

 ducted. A larger capital, mills of greater capacity, and the reduction of 

 a greater number of tons daily, by employing night labor, would add 

 very much to the amount realized. I have not given the results obtained 

 from working the sulphurets. Those given from essentially actual ex- 

 perience are to be preferred ; and they will afford a method of estimating 

 the possible merits of the gold mining and milling business. 



