HALL. — ELECTRIC CONDUCTION AND THERMOELECTRIC ACTION. 99 



TABLE X. 



In some cases t r and /„ were obtained by calculation, in others by a 

 graphical process which is 

 illustrated in Figures A and 

 B. It is evident that the 

 extrapolations indicated by 

 the dotted extensions of the 

 curves in these Figures are 

 extremely hypothetical, and 

 there was, perhaps, no good 

 a priori ground for expect- 

 ing that t r and /„ would 

 prove to be even of the Fi$.A 



same order of magnitude. 



0: 



c 



t 



25 If Vl-h Vs = 1.03. 



