Manchester Memoirs, Vol xlm. (i8gg), No. 10. 15 



NOTE. 



The Broughton Copper Company having kindly 

 offered to undertake an analysis of the copper bars 

 used in the preceding experiments, a piece was cut from 

 one of the specimens and forwarded them with the 

 following result. 



Analysis of B.S. Copper: 





Copper 



• •• 9974 pei^ cent 



Arsenic 



. -024 „ 



Lead 



•130 » 



Bismuth ... 



•007 , , 



Nickel 



. . . trace 



Antimony 



... nil 



Oxygen (by difF. ) 



•099 ., 



