Phase Change by Reflection 



II 



340 were maxima of transmission. The magnitude of the trans- 

 mission was considerably less than that for glass. 



Crystal-Violet. — For this substance the phase change (Table 3, 



aoo 



■foo 



6OO yO/i 



30 



.40 



.30 



xo 



.10 



Aniline Orar^z 



600 /^ 



zoo 



^fCO 



soo 



600 yU^ 



Fig. 4. 



Fig. 3) decreases gradually from about .5 of a wave at 580 to a 

 minimum, approximately zero, at about 460(111, then from this 



177 



