Lesley.] 



12 



[Jan. 3, 



36,000 tons of ore for every yard driven back southward on the mountain. 

 For a depth of 100 yards back, which is the depth now at the Old Bank, 

 we have 24,000X100 =--2,400,000 cubic yards, or 3,600,000 tons of ore as 

 the product of a bank reaching from the Old Bank to the Strickler, run- 

 ning back 100 yards, and cut down from top to bottom through 15 yards 

 of lump and wash ore. But there is no reason why this prism should not 

 be extended to the eastward as far as the ore is proved, say to Red Bank 

 No. 1, the distance along the course of the ore being just five times 1600, 

 or 8000 yards; and reducing the estimated thickness to 22^ feet for secu- 

 rity, we have 3,600,000X5—9,000,000 tons, a practically indefinite amount 

 with only 100 yards extension into the mountain. There is, of course, 

 no reason for fixing 100 yards as the limit, except for purposes of compu- 

 tation. After these figures it is scarcely necessary to compute the prob- 

 able mass of ore sweeping eastward from the Red Bank (No. 7) around 

 the eastern end of the South Mountain to the Knaub Bank. 



No. 6. Strickler Bank. — Lies three miles south 32° west from Boil- 

 ing Springs. Sketch, Fig. 9, exhibits the relative size of the bank, 

 machinery for working, etc., and cross-section Fig. 10, shows the 20 

 feet of lump and wash-ore now being worked. In addition to this, the 

 Superintendent states that the sump, 26 feet deep, was sunk entirely 

 through ore, having solid ore in bottom. The present excavation shows 



fig 9 

 strickler bank 



no. 10. 



SECTION IN STRICKLER BANK 



wmiti ttuew tliAMCiArt 



about 12,000 cubic yards, or 16,000 to 18,000 tons of ore removed ; 18 tons 

 of ore a day ai'e now being shipped. The bank has water to wash 75 or 

 80 tons a day, but not machinery. 



No. 7. Papertown Banks. — Two ore banks are opened here, and are 

 now being worked. They lie just inside the Papertown Gap. The 

 southern of the two — the Wyncoop-Medler Bank — is roughly sketched 

 in Fig. 11. Large quantities of manganese are in these beds. 



The present working face of ore, as shown in the cross-section, gives 

 18 to 20 feet of wash and lump ore in sight, with ore in the bottom. This 

 is at the southern and western sides. At the northeastern end the bottom 

 of the ore is reached and the sump is not through ore. The dip is 

 to the southward and very decided, the present bank going directly 

 across the ore bed, the total thickness of which, vertically, must be very 

 great. The operators are now shipping about 40 tons of ore a day. They 



