THE ADRENALS 29 



that we should bear in mind when applying our 

 knowledge to treatment. 



The suprarenal is the organ of self-preservation, 

 the primitive universal instinct of all animal life. 

 It is the real fundamental egoist ; it belongs more 

 to war than to peace, more to the flesh than to 

 the spirit. Nevertheless, it is the necessary 

 foundation of physical success; controlled by, 

 and working with, other powers, it will help man 

 to transmute his egoism into altruism, his man 

 power into humanity's service. This power we 

 must determine to use in our fight against the 

 unseen enemy we call disease ; it must be one of 

 our chief allies. 



In the experimental injection of adrenalin or 

 of the extract of the whole gland into the veins, 

 the most prominent and probably the most 

 important symptom is the big rise of blood- 

 pressure ; this is rapid, but does not last long. 

 In the ordinary medicinal use, either by hypo- 

 dermic solution of adrenalin or by whole gland 

 extracts by the mouth, the results are more 

 gradual and rarely go beyond the normal pressure 

 point of 140 mm. Professor Sajous says, " The 

 supposed blood-raising power of adrenalin in 

 medicinal doses proved misleading. Indeed, one 

 of my workers found that if there is one thing 



