Compound Ascidian Diazona violacea, Savigny. 



700 e c 



400 



a. Diazona (green solution) in alcohol. 



b. Chlorophyll in alcohol. 



c. Bonelleine, green neutral solution in alcohol. Sorby. 



d. Diazona (yellow solution) in alcohol. 



e. Chlorophyll (yellow pigment) in alcohol. 



/. Diazona (purple pigment) in acetylene tetrachloride. 



g. Purpura (purple pigment) in acetylene tetrachloride. 



h. Bonelleine, purple acid solution in alcohol. Sorby. 



