1318 SUPRARENAL PIGMENT. 



(p. 1298), while the medulla gives one resembling h;emochro- 

 mogen. The pigment is obtainable from the suprarenals as a 

 brownish-red substance with an acid reaction, soluble in water 

 and alcohol, but neither of the solutions shew any distinct 

 absorption bands. The whole subject requires further investi- 

 gation, which might be of interest in connection with the origin 

 and causation of the increased pigmentation of the skin observed 

 when the suprarenals are diseased. 



