162 GLANDS IN HEALTH AND DISEASE 



has brought forward evidence to show that at times 

 of emotional excitement, pain or asphyxia (suffo- 

 cation), an increased secretion of adrenaline takes 

 place. "Adrenal secretion has previously been 

 proved to be subject to sympathetic stimulation 

 (see page 83) ; and as excitement, pain and as- 

 phyxia were conditions well recognized as accom- 

 panied by sympathetic activity (manifested, for 

 example, by inhibition of digestive functions), an 

 attendant adrenal secretion was naturally to be ex- 

 pected. In a series of papers which follow the first 

 two in 1911, experiments were described showing 

 that adrenal secretion was serviceable in lessening 

 muscular fatigue and in accelerating coagulation 

 (clotting) of the blood. It was pointed out that 

 excitement, pain and asphyxia were conditions 

 which in natural existence would commonly be as- 

 sociated with struggle, and the adrenal secretion, 

 which accompanies these three states, would be 

 useful in great muscular effort." 



Cannon criticized l>y Professors Stewart and 

 Gley. Stewart, of Western Eeserve University, 

 Cleveland (working in conjunction with his chief 

 assistant, Dr. Eogoff), and Gley, of the College de 

 France, Paris, have seriously questioned Cannon's 

 interpretations. From his own work Stewart 

 draws three conclusions, each one of which helps 

 to explain a discrepancy, and all three of which 

 tend to throw confusion into the camps of Cannon's 



