AaBC D 



CRUENTINE. 

 Eb F 



109 



HH' 



Spectrum of neutral fluorescent cruentine. 



4. Treat a portion of the flakes already extracted 

 with chloroform, with alcohol. It will dissolve almost 

 entirely, and the spectrum of the solution will show 

 five bands. 



AaBC 



Eb 



HH' 



Neutral five-banded cruentine in alcohol. 



Add ammonia till alkaline, one band will disappear 

 and the others slightly change their position and size. 

 5. Cruentine dissolved in ammonia shows four bands. 



AaBC 



HH' 



Spectrum of alkaline cruentine. 



When treated with the ferrous tartrate solution 

 described under hematine, it is reduced and now shows 



