THE ADRENALS 21 



go over briefly the known physiological actions 

 of adrenalin. The gland is divided into the 

 cortical part and the medulla. The function of 

 the cortex is still in doubt, though it is known 

 that in early life tumours of this may produce 

 abnormal sexual development. Given by the 

 mouth preparations of the whole gland are far 

 more active than adrenalin per se. This points 

 to the cortex containing something of its own, 

 and that something of no small value. 



In support of this I give the following extract 

 from Dr. Louis Herman's great work : * 



" The two parts of which each gland is composed 

 are known as the cortex, or outer portion (literally 

 the bark), and the medulla, or inner portion (liter- 

 ally the core). No clean-cut boundary sharply 

 delimits the two, as strands and peninsulas of 

 tissue of one portion penetrate the other. In the 

 history of their development in the species and in 

 the individual, and hi their chemistry and function, 

 a sharp difference contrasts them. 



"The size of the cortex varies directly with the 

 sexuality and the pugnacity of the animal. The 

 charging buffalo, for example, owns a strikingly 

 wide adrenal cortex. The fleeing rabbit, on the 



1 The Glands Regulating Personality. The Macmillan 

 Company, Publishers, New York and London. 



