40 



Number of men employed, thirty-four. 



20 Miners, at $4 per day $1,920 



6 Stokers, at $3 per day 432 



2 Engineers, at $125 per month 250 



2 Whim Tenders, $100 per month 200 



1 Blacksmith, $100 per month 100 



1 Carpenter, $100 per month 100 



2 Carmen, $80 per month 160 



Incidentals 200 



$3,362 



Aggregate amount of ore reduced in three months, 1,000 tuns. Aver 

 age value, $40 per tun $40,000 



Cost of reduction, at $6 per tun 6,000 



Length of East Adit, 210 feet, cost $5 50 per foot 1,155 



" West Adit, 140 feet, " ' 740 



Depth of engine shaft, 20 fathoms. 



Aggregate expenses on mine for three months $10,086 



Aggregate of dead work, and value of engine since re-opening 25,000 



Aggregate receipts $40,000 



Whole amount Adit Levels, 350 feet. 

 " Shafts, 20 fathoms. 



Working eighty feet below water line, pump discharges 260 gallons per min 

 ute. 



BOSTON MINE, GRASS VALLEY, NEVADA COUNTY. 



This mine is at present owned by a French company. No general history of 

 the mine was obtained. The following are their statistics for 1854 and 1855 as 

 nearly as they could be obtained : 



Statistics for 1854. 



Number of men employed, nine. 



4 miners, $5 per day $480 



2 engineers, $160 per month . , 320 



1 battery tender 120 



21 cords wood per day, $4 50 264 



2 stokers 160 



Incidentals . , 280 



$1,624 

 Amount of ore reduced per day, 13 tuns ; average value $15. 



Aggregate receipts for 9 months $36,630 



expenses 14,616 



Balance in favor $22,014 



