KEMP'S ORE DEPOSITS. 



tend from southwest to northeast, parallel to the trend of the hills. 

 The beds are more or less faulted. The southern part of the second 

 basin affords Bessemer ores, but the others are too high in phos- 

 phorus. At this point the principal mining has been done. Ac- 







f 



cording to Olmstead, some varieties are richer in phosphorus than 

 others, but they are so intimately mixed as not to be practicably 

 separated. Up to 1889 the mines had produced 450,000 tons of 

 roasted Bessemer ores. 



