﻿$±2 Messrs. E. W. B. Gill and F. B. Pidducls 



on 



Numerical results obtained. 

 The results of the experiments for the determination of a 

 and j3 are exhibited in the following tables. The distances d 

 are given in cms., the electric force X in volts per cm., the 

 currents (in arbitrary units) measured as the mean of several 

 observations are given as </, while the calculated values of the 

 current n are given in the last row, the values of a and /3, 

 from which they are derived, being shown also in each table. 

 The agreement between the observed and calculated values q 

 and n will be noticed. 



Table I. — Pressure 5*2 mm 



i ' 



•2 



•4 



•6 



•7 



•8 



X=198 q 



* = 5'44] 

 P= '07 J 



2-96 



9-65 



36-9 



95 



1620 



299 



9-45 



3G-5 



95 



1710 



Table II. — Pressure 5 mm. 



i 



"2 



•4 



•6 



111 





1 



X=200 q 



: *= 5-401 



|3= -082 j 



2-98 



9-10 



35-6 



2-98 



9-40 



38 



108 



Table III. — Pressure 3 mm. 



d 



•4 



•5 



■6 





X-240 q 



10-5 



20-6 



55-1 



a=5*5 | 

 0='12 J n 



10-4 



21-4 



- 



55-3 



