58 



Art. 7. — K. Yamada : 



'Iaiîlk XLL 



The variation of JA is proportional to tlie fields applied as in 

 all other cases of sharp triplets. Plate XIX, Fig. 2. The results 

 of former investigators are: 



(10) /i::]31)2-')7. 



Intensity 7; triplet, Imt each component is somewhat wide; 

 character^. Plate I, Fig. 2; Plate III, Fig. 3. The determina- 

 tion of the fields is the same as in the case of À: 3619'39. 



