On the Magnetic Susceptibility of Liquid Oxygen. 319 



the above figures equal to 1*75 xlO~ 6 , and the absolute value k =. 

 -1-73X1CT 6 . 

 E. Becquerel gives l'74x 10~ 6 as his observed value for silver. 



The Magnetic Susceptibility of the Bismuth Ball. 



Weight of bismuth ball in air at 15 C. = 62'220 grams. 

 Volume of bismuth ball at 15 C. = 6'326 c.c. 



The absolute magnetic susceptibility of air is 0'024 x 10 6 . The 

 mean apparent susceptibility of bismuth in air is, therefore, from the 

 above figures equal to 13*77 X 10~ 6 , and the absolute susceptibility 

 k - - 13-75 xlO- 6 . 



Recent values found by ether observers are 13*4 xlO~ 6 (P. 

 Curie), and 13*3 xlO~ 6 (L. Lombard]'). Hence our own is in 

 accordance with these. 



The Magnetic Susceptibility of the Copper Ball. 



Weight of copper ball in air at 15 C. = 37*610 grams. 

 Volume of copper ball in air at 15 C. = 4*226 c.c. 



