1887.] Rate at which Electricity leaks through Liquids. 417 



Experiments on Paraffin Oil. 



Little or no difficulty was met with in the case of the paraffin used. 

 It was an ordinary sample of the oil used in lamps. After careful 

 filtering it was put into the condenser, and readings were taken. 

 These are given in Tables V — VII. Experiments 36 and 37 gave 

 readings almost identical throughout. They are represented 

 graphically in fig. 4. The interval between successive readings was 

 5 seconds. 



Table V (see Fig. 4). 



Experiments 36 and 37. Paraffin Oil. 1 inch up straight. Con- 

 denser charged for 10" only before readings were taken. 



Deflections. Katios. 



Deflections. Katios. 



Deflections. Ratios. 



« 1-183 



1 i& 



1,172 



ioo 1,160 



«« 1-163 

 2o 1-179 



62 1-177 

 62 1-127 



47 i' 170 

 40 1,175 

 35 1,143 

 31 1,13 

 27 ™ 



Table VI. 



Experiment 38. Paraffin Oil. 1 inch up straight. Condenser 

 charged for 3' 0" before readings were taken. 



Deflections. Eatios. 



Deflections. Ratios. 



Deflections. Ratios. 



i 



265 1 " 169 



230 1150 

 Too 1-159 



iyy 1 -161 



17° i .i 



147 



129 1 140 

 12 * 1-163 



nc 1 *156 



85 la29 

 85 1-13 



11 1'15 

 50 1,12 



A A 1*13 



39 *; 13 



2 u i! 



