Tables 481 -483. 

 TABLE 481. — Values oi Kerr's Constant.* 



383 



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 magnetizaiion multiplied into a constant K. He calls this con- 

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



* H. E. J. G. Du Bois, " Phil. Mag." vol. 29. 



TABLE 482. — Disiierslon of Eerr Effect. 



Field Intensity =: 10,000 C. G. S. units. (Intensity of Magnetization = about Soo in steel, 700 to 800 in cobalt, 

 about 400 in nickel). IngersoU, Phil. Mag. 11, p. 41, 1906. 



TABLE 483. — Dispersion of Kerr Effect. 



Foote, Phys. Rev. 34, p. 96, 1912. 



See also Ingersoll, Phys. Rev. 35, p. 312, 19T2, for "The Kerr Rotation for Transverse Magnetic Fields," and 

 Snow, 1. c. 2, p. 29, 1913, " Magneto-optical Parameters of Iron and Nickel." 



Smithsonian Tables. 



