334 TABLES 388,389. 



TABLE 388' Transverse Galvanomagnetic and Thermomagnetic Effects. 



Effects are considered positive when, the magnetic field being directed away from the observer, 

 and the primary current of heat or electricity directed from left to right, the upper edge of the 

 specimen has the higher potential or higher temperature. 



E= difference of potential produced; T difference of temperature produced; 7= primary 



dt 

 current; -r- = primary temperature gradient; B= breadth, and D= thickness, of specimen; 



Sf= intensity of field. C. G. S. units. 



Hall effect (Galvanomagnetic difference of Potential), E = K 



Ettingshausen effect ( " 

 Nernst effect (Thermomagnetic 

 Leduc effect ( 



" Temperature), TP-^- 



" Potential), E = 

 " Temperature), T 



TABLE 369. -Variation of Hall Constant with the Temperature. 



1 Barlow, Ann. der Phys. 12, 1903. * Everdinsren, Comm. Phys. Lab. Leiden, 58. 



8 Traubenberg, Ann. der Phys. 17, 1905. * Melting-point. 



Both tables taken from Jahn, Jahrbuch der Radioactivitat und Electronik, 5, p. 166; 1908, who has collected data of 



all observers and gives extensive bibliography. 

 SMITHSONIAN TABLES. 



