Table 310. 



MAGNETIC SUSCEPTIBILITY OF LIQUIDS AND CASES. 



The following table gives a comparison by Du Bois * of his own and some other determinations of the magnetic sus- 

 ceptibility of a few standard substances. Verdet's and Kundt's constants are in radians for the sodium line D. 



Table 31 1. 



VALUES OF KERR'S CONSTANT. t 



Du Bois has shown that the rotation of the major axis of vibration of radiations normally reflected from a magnet is 

 algebraically equal to the normal component of magnetization multiplied into a constant K. He calls this con- 

 stant, K, Kerr's constant for the magnetized substance forming the magnet. 



• " Wied. Ann." vol. 35, p. 163. 

 Smithsonian Tables. 



t H. E. J. G. Du Bois, " Phil. Mag." vol. ag. 



292 



