[WILSON] CURRENT FROM HOT PLATINUM IN AIR 
Qt 
I 
Vin Volts. C/S (Calculated) C/S (Found) 
24-3 O-1 0-12 
34-2 0-2 0-22 
47-1 0-3 0-30 
65-1 0-4 0-40 
91 0-5 0:63 
131 0-6 0-68 
197 0-7 0-82 
333 0-8 0-86 
744 0-9 0-91 
Owing to the small scale of the figure, the values of C/S could not 
be read off very exactly, so that the agreement is as good as could be 
expected, and provides an interesting verification of Sir J. J. Thomson’s 
theory of the relation between the current and electric force. The 
theoretical equation between V and C/S contains no arbitrary constants, 
so that its agreement with the observations is a strong confirmation of 
the theory. à 
