60 



Proceedings of the Royal Irish Academy. 



Table XI. 





Mercury. 





Watbic. 



Long Time Interval*. 



Short Time Interval. 



Alcohol. 



A 



Cmliicd. 

 B 



Dried. 

 C 



Ondried. 

 D 



Dried. 

 E 



F 



1-00 



— 



— 



— 



— 



1-X0f 



■53 



— 



— 



— 



— 



•50 





— 



— 



— 



•32 



•31 







— 





— 



•22 



•12 



— 





— 



•002 

 ■048 



■12 





— 



•024 



■018 



■049 



■013 



•llll 



. 



— 



•017 



— 





J 





■0064 



•0077 



•0043 









— 



•0040 



— 





•0021 





•0022 



■0023 







— 



•0013 



— 



0014 





— 



•000! 





— 



■0OOG3 





'"34 







— 



00034 



— 



— 





— 



•00015 



* '. <1 u iii m A _. ■■- the ions of mobilities smaller than 1 -Oil < m. per sec, 



which are produced by spraying distilled water. The higher mobilities 



I when watei i- aprayed have cot been included in this table, as 



corresponding ions have not been observed in the work with mercury or 



l B I D V. _ ■■ the mobilities of the ions produced by 



bubbling air through mercury. The results in columns B and I> were 



lined with undried air, and those in columns and E with airwhich had 

 been fairly well dried. Tin' time between the production of the ions and the 

 ement of their mobilities was longer in the case of the values given in 

 colum I C than for those in columns 1> and K. 



[| should be stated that ions of greater mobilities than those given in the 

 table may be formed when air is bubbled through mercury; the small 

 amount of ionisation rendered it difficult to he certain. 



Column F gives the mobilities of the ions observed in the present papei 

 when air is bubbled through alcohol. 



