256 ELECTROLYSIS. 



These two last named salts are, under the action of the sodic 

 chloride, transformed into cupric chloride, iron perchloride, and 

 sodic sulphate. 



The decomposition is maintained by allowing a fresh solu- 

 tion of sodic chloride to fall drop by drop into the vessels. 



LONDON : PRINTED BY WILLIAM CLOWES AND SONS, MMITF.n, 

 STAMFORD STREET AND CHARING CROSS. _ 



