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 CONSTANTS 



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. 29. 



292 



