215 



Fig. 7. P-azoxy-anisol 



E 

 ex-liquid 



vertical field (300 Gauss). 



The different magnetic effect in the two states consequently can be 

 described as follows: a strong field acts analogeouslj on ex-solid as 

 a weak field on ex-liquid. 



Finally we shall mention a magnetic effect of a particular kind. A 

 horizontal field causes lasting clearing up as well in the ex-solid as in 

 the ex-liquid state a. In our former communication we explained this 

 diminishing of the extinction by the fact that the particles are directed 

 to a high degree. Now it seemed to us of importance to examine 

 how a vertical field would disturb this order. Figures 8 and 9 show 

 this disorientating influence of a vertical field on ex-liquid and 

 ex-solid, when the substance has first been exposed to the effect of 

 a horizontal Held. 



A E » 



Fig 8. P-azoxy-anisol ex-liquid first horizontal field, then vertical field. 



ƒ 



■\_ 



Fig. 7. P-azoxy-anisol 



L 



E 

 ex- solid 



first horizontal, then vertical field. 



