Trans. Roy. Dubl. Soc, Ser. II., Vol. VII. 



Plate XV. II. 



Cupric Chloride. 

 CuCl2-2H20. 



The same salt in 

 Glycerine. 



The same, with Hydto- 

 chloric Acid. 



The same in Alcohol. 



The same mixed with 

 Calciuni Chloride solu- 

 tion. 



A dilute hlue solution ol 

 CuCl-.-2H20. 



Cupric Bromide. 

 CiiBra-SHjO. 



Cupric Sulphate 

 CuS04-oH20. 

 Thin wedge-cell. 



Cupric Nitrate. 

 Cu(N03)2-3H20. 



Cupric Chloride mixcil 

 with Ammonia. 



Cupric Sulphate. 



CuSOi-SHaO. 

 Tliicli wedge-cell. 



Tl e Ab.oiption Spectra of solutions of Copper Salts at dillc.ent temperatures. 



