of Organic Bodies, at very Loiv Temperatures. 259 



The electrical resistance of the condenser at — 200 pt. with frozen 

 sodic fluoride as dielectric was 2000 megohms. 



V. Dielectric Constant of Hydrosoclic Fluoride (NaFHF). 

 (10 per cent, solution.) 



Corrected galvanometer deflection with air as dielectric == 3*42 cm. 



for 100 volts. 



Mean 



Temperature galvanometer 

 in platinum deflection Dielectric 

 degrees. in centimetres, constant. Observations. 



-201-8 8-87 2-28 



-186-0 8-87 2-25 



-169-0 8-95 2-30 



-178*8 9-0 2-31 



-148-8 9-7 2-49 



-142-2 10-9 2-79 



-131-5 15-4 4-02 



VI. Dielectric Constant of Sodium\Peroxide (Na 2 2 ). 



(5 per cent, solution.) 



Corrected galvanometer deflection with air as dielectric = 4*41 cm. 



for 100 volts. 



Mean 



Temperature galvanometer 

 in platinum deflection Dielectric 

 degrees. in centimetres, constant. Obsei'vations. 



— 198'0 4-5 71 Condenser charged with 1"434 volts. 



-184-5 5-5 87 



VII. Dielectric Constant of Solution of Hydro xyl (H 2 2 ). 

 (20 per cent, solution by volume.) 

 Mean 



Temperature galvanometer 

 in platinum deflection Dielectric 

 degrees. in centimetres, constant. Observations. 

 -203-5 10-8 2-38 Condenser charged with 99'2 volts. 



Some experiments were then made by electrolysing freely certain 

 electrolytes and freezing them with liquid air in the act of electro- 

 lysis. The dielectric constants were then subsequently determined 

 in the frozen state. 



