Magnetic Separations of the Lines of Iron, Nickel and Zinc in Different Fields. 53 



and Plate I, Fig. 3. The determination of the fields is the same 

 as in the case of X: 3524*53. 



Tajîle XXXVI. 



AX 

 H 



XVIII. 



are: 



is nearly constant as in all cases of sharp triplets. Plate 

 Fig. 1. The results of already published investigations 



(5) /1: 3492-96. 



