94 PHYSIOLOGICAL AND PATHOLOGICAL CHEMISTRY. 



completely decolorized (distinction from lutein, occurring in 

 the yolk of eggs, corpus luteum, many cysts, blood-serum, 

 palm-oil, and in flowers, which is not removed from the 

 chloroform solution by shaking with dilute alkalies). 



Separate the alkaline solution and let it stand in the air: 

 it gradually turns green owing to the formation of biliverdin, 

 C, 2 H 36 N 4 O tt (?) (oxidation). 



