1874.] 



63 



[Lesley. 



Blair Co., from which was made by preference the ordnance of the U. 

 S. Army during the civil war 



Fig. 33. 



Dr.Genth's analysis of the Kerr & Bredin ore, given below, when com- 

 pared with Dr. Otto Wuth's analysis of Bloomfield ore, made June 9, 

 1871, compare as follows : 



