1874.] 



61 



[Lesley. 



yards. The worked depth (to water) varies from 20 feet at Red Bank to 

 100 feet at Dry Hollow Bank. Taking an average of 10 yards, we have 1000 

 X150X10=1, 500,000 cubic yards of wash and lump ore. Discard one- 

 half of the leaner interval between, and allow one ton to the yard in con- 

 sideration of the size and quantity of lump ore, and we have 750,000 tons. 



Fig. 33. 



In our ignorance of the condition of things where the water stopped the 

 old fashioned rude mining, it is impossible to say how near this estimate 

 approximates accuracy. 



No. 25, Bean Bank lies a mile to the S. West of the Dry Hollow 

 Bank, where many tons of surface lump ore were scratched out and 



