142 MAN AN ADAPTIVE MECHANISM 



FIG. 19. CASE OF EXOPHTHALMIC GOITER. 



The identity of the mechanism stimulated by physical exertion, by emo- 

 tion and by that emotional disease, exophthalmic goiter, is suggested t>\ the 

 facies of this typical patient. The Graves' patient is physiologically in a 

 chronic state of activation for flight. 



