198 Mr M c Glung, Effect of Temperature on Ionization, etc. 



of the gas has on the amount of the ionization produced in it by 

 the action of the Rontgen rays. 



This investigation is still in progress, and the statement 

 of a universal law with regard to the effect of temperature on 

 ionization must therefore be reserved until further experiments 

 are made. However, as far as the above experiments go, they show 

 conclusively, within the limits investigated, that the amount of 

 ionization in these gases is independent of the temperature of the 

 gas when the density remains constant. 



In conclusion, I wish to express my best thanks to Prof. 

 Thomson for the kindly interest shown and the advice given 

 during the course of this investigation. 



