6 Schuster, Rate at which Ions are Generated. 



The column n gives the ionic density observed when 

 the apparatus was used with S attached to it. The last 

 column gives aff' which is the number of ions generated 

 or recombining in one second of time when an equilibrium 

 is reached with n as the total number. 



It is interesting to notice that although Ebert's 

 apparatus gives exactly the same total number n for the 

 ionic density, in the open air at Rochdale and inside the 

 Physical Laboratory, yet the conditions were evidently 

 quite different as is seen from the value of ni in the last 

 column. It is also worth noting that both a and n were 

 different in the morning and afternoon observations taken 

 on the roof of the laboratory, but that vi is practically 

 unaltered. 



