422 Messrs. J. J. Thomson and H. F. Newall. [June 16, 



Table XIII. 



Experiment 45. Olive oil. 1 inch up straight. Time of charge 



long. 



Deflections. Ratios. 



Deflections. Ratios. 



Deflections. Ratios. 



500 -i ., Qfi 



Z ™ 



ZbU 1-190 



210 i-m 



179 



151 1 ' 185 



129 1,170 

 129 1 -205 



?A 1 -202 

 66 . ^ 



Curve plotted for olive oil from Table XII. 

 Time of charging condenser short. 



'Experiments on Rate of Leah at Different Temperatures. 



In all the liquids experimented on (benzene, olive oil, carbon disul- 

 phide) the leak was quicker at higher temperatures than at lower. 



These liquids then must be classed in this respect with electrolytes, 

 and not with metallic conductors. 



A metal vessel was put round the outer cylinder of the condenser, 

 and was connected by a tube with a second vessel, which could be 

 heated or cooled, and raised or lowered. By these means the condenser 

 could be surrounded by hot or cold water without having its position 

 disturbed in any way. 



Readings were then taken at 15 seconds intervals, the condenser 

 being in one set of observations under the same circumstances in 

 every way except with respect to temperature. Each set contained 

 three (or five) readings, one reading at a high or low temperature 

 being taken between two readings at a medium temperature, so as to 



