377 



TABLE 474. 

 MAGNETIC SUSCEPTIBILITY. 



If 31 is the intensity of magnetization produced in a substance by a field strength ft then the 

 magnetic susceptibility H = 3I/*. This is generally referred to the unit mass; italicized figures 

 refer to the unit volume. The susceptibility depends greatly upon the purity of the substai: 

 pecially its freedom from iron. The mass susceptibility of a solution containing p per cent by weight 

 of a water-free substance is, if H is the susceptibility of water, (p/ioo) H + (i p/ioo) HQ. 



Values are mostly means taken of values given in Landolt-Bornstein's Physikalisch-chemischt Tabellen. 

 dally Honda, Annalen der Physik ( 4 ), 32, 1910. 



SMITHSONIAN TABLES. 



See espe- 



