4 Mr. Gr. A. Hemsalech on the Relative Behaviour 



Method of working the Electric Sprayer. — The solution o£ 

 the salt to be examined, in our case a concentrated solution 

 of perchloride of iron, is poured into the reservoir R, which 



Fiaf. 1. 



Electric sprayer. 



can be fixed at any height on a clamp-stand. By means of 

 a pinch-cock some o£ the liquid is allowed to flow into the 

 sprayer until the electrode E ± is just completely covered by 

 it. Both electrodes E 2 and E 2 are placed in the discbarge 



