488 



Prof. McLennan and Mr. Keys on the 

 Table I. 





Air. 







p 



ressure = 145 35 atmospheres. 





P.D. in volts, V. 



Square of P.D. 



Current in e.s.u. per 



cm. 2 



Positive. 









4-11 



1689 



4-51x10"° 





6-16 



37-95 



11-51 





8-21 



67-3 



21-51 





10-26 



105-27 



33-87 





12-3 



150-69 



48-71 





14-35 



206-27 



67-24 





16-4 



268-0 



84-89 





Negative. 









4-1 



168 



7-09x10 5 





6-16 



37 95 



16-42 





8-2 



67-0 



2983 





10-26 



105-27 



45-32 





12-3 



150-69 



66-25 





14-36 



206-2 



91-56 





16-4 



268-0 



122-9 





Fig. 2. 



SO <SO S>0 I20 ISO 130 210- 24-0 2X0 ^OO 



VOLTAGES DQUAULD-V 2 



