' ' ' I 



3. 



Spectrophotograph of absorption bands of carotin and 



xanthophyll in alcohol and carbon disulfide. (After 



Willstiittrr and Stoll) 



1. Carotin in alcohol 



2. Xanthophyll in alcohol 



3. Carotin in carbon dis-ulfido 



4. Xanthophyll in carbon disulfide 



PLATE 1 



