362 



Profs. J. A. Fleming and J. Dewar. On the 



The resultant charge having been measured on the ballistic gal- 

 vanometer, the condenser was lifted out into the cold gaseous oxygen 

 lying on the surface of the liquid oxygen, and before the condenser 

 had time to alter its form by rising in temperature, the same process 

 was repeated with the dielectric changed to gaseous oxygen at 

 -182 C. 



The following Table I shows the observed ballistic throws, all 

 reduced to their equivalents at one common charging pressure of 

 100 volts : 



Table I. Observations to Determine the Dielectric Constant of 

 Liquid Oxygen. 



Mean ballistic throw in gaseous oxygen 

 in liquid oxygen = 10"903 = 6. 



7'502 = 0'. Mean ballistic throw 



