1874.] 



65 



[Lesley 



the shaft was sunk 6 feet further and then the flow of water stopped its 

 further descent. 



From the bottom of the shaft a five inch auger hole was then drilled 

 through a continuous bed of pipe ore to an additional depth of 39 feet. 



Fig. 34. 



The percentage of iron in the pipe ore is uniform ; or varied only by 

 the chemist's including in his analysis adherent or enclosed clay. 



It is a constant feature of the Pipe ore banks of the southern range 

 that they do not furnish the "lean ores," so-called, which are met with 



A. p. S. — VOL.. XIT. I 



