102 MESSRS. A. SMITIIELLS, H. M. I>AWS<>N. AND II. A. WILSON: ELECTRICAL 



H'lntion of Conductivity to Concentration of Solution and to the Nature of 'the 



Experiments with solutions of the various salts iu different concentrations show 

 that the relation between conductivity and concentration of salt vapour in the flame 

 is not of a very simple nature. 



Marked differences of conductivity are shown by salts according to their electro- 

 positive constituent, and under certain conditions, also, according to their electro- 

 negative constituent. 



Curve III. 



too 



70 

 ZOO 



eso 



30 



ito 

 tlO 



zoo 



190 

 ISO 

 170 



160 

 ISO 

 140- 



130- 



ol 

 ,4 



100 



:: 



70 

 60 

 50 

 40 

 JO 

 KO 

 10 







7 



/ 



X 



KOH 



Kl 



03 O / O /5 



Variation of current with concentration of solution. E.M.F 



, 5-60 volts. 



Curves II, III, and IV show clearly the variation of conducting power with con- 

 centration, the ordinates and abscissae being respectively current strength and 

 concentration. 



