-384 Profs. Fleming and Dewar. Dielectric Constants 



VI. Dielectric Constant of Sodic Hyposulphite (Xa 2 S2Ho04.4H 2 0). 



(10 per cent, solution.) 



-Corrected galvanometer deflection when the condenser had air as 

 dielectric = 4*15 cm. for 100 volts. 



Observations. 

 Condenser charged to 1*434 volts. 





Mean 





Temperature 



galvanometer 





in platinum 



deflection 



Dielectric 



degrees. 



in centimetres. 



constant. 



-200-8 



4-40 



74 



-183-0 



4-75 



80 



-163-7 



5-05 



85 



-1438 



5-75 



96 



-130-7 



7-02 



118 



-122-7 



7-20 



121 



-114-8 



7-67 



129 



—107-7 



8-65 



145 



-98-4 



11-15 



188 ? 



VII. Dielectric Constant of Sodic Silicate. 

 (5 per cent, solution.) 

 Corrected galvanometer deflection when the condenser had air as 





dielectric 



= 4'15 cm, for 100 volts. 



Temperatui'e 

 in platinum 

 degrees. 



Mean 

 galvanometer 



deflection 

 in centimetres. 



Dielectric 



constant. Observations. 



-200-0 



342 



57*4 Condenser charged to 1*434 volts 



-195-5 



6-15 



103*0 



-175-0 



7-25 



122*0 



-164-7 



7*45 



125*0 



-148-2 



7-60 



128*0 



-138-8 



7-60 



128*0 



-129-7 



7-80 



131*0 



-106-2 



8-15 



137*0 



-96-0 



8-65 



145-0 



