Jour. Sei. Coll., Vol. XLI., Art. 7, PI. VII. 



X : 4415-13 (Fe) 



0-000 



-»H 



X : 4404-75 (Fe) 



0-800 



0-700 

 0-600 

 0-500 

 0-400 

 0-300 

 0-200 

 0-100 

 0000 



1 1 \ 1 1 \ 1 r — I r- — I 1 — 



10000 



20000 



30000 



-H 



Fig. 2. 



K. Yamada : Magnetic Separations of the Lines of Iron, Nickel and Zinc in Different Fields. 



