Tiro Ions produced in Gases by Rdntgen Radiation. 129 

 Fig:. 4. 



60 



40 



20 









Air. 









I 















I 







n 



-l- 



1 



1 













/ C 







/ 

















/ B 



/ 









i ! 



A 



(■ — - ' 



















10 



20 30 



40 50 



Volts. 



60 



70 



80 



90 



The following table shows some readings obtained when 

 the gas used was carbonic acid gas. The velocity of the gas- 

 blast used in this instance was much smaller than in the case 

 ju>t cited. 



Table II.— CO,. 



Potential of Q 

 in volts. 



Electrometer 

 deflexion. 



Potential of Q 

 in volts. 



Electrometer 

 deflexion. 



+ 10 



+ 4-5 







+ 16 



+ 9-5 



-16 



- 90 



+ 18 



+ 14-5 



-18 



-15-0 



+20 



+23-5 







+22 



+31-0 



-22 



-310 



+26 



+56-0 



-26 



-55-5 



+28 



+65-5 



-28 



-670 



+30 



+770 



-30 



-78-5 



Phil Mag, S. 5, Vol. 46. No. 278. July 1898. 



K 



