226 MAN --AN ADAPTIVE MECHANISM 



disease are identical with the leading phenomena of 

 any other kinetic activation of a corresponding dura- 

 tion and degree of intensity. The phenomena of fear, 







A. B. 



Section of normal human cerebellum. Section of human cerebellum after 

 (After accidental death.) death from exophthalmic goiter. 



FIG. 49. EFFECT OF EXOPHTHALMIC GOITER ON THE BRAIN-CELLS OF 

 A HUMAN BEING. 



Note the loss of chromatic material in all and the evidences of deteriora- 

 tion in many of the Purkinje cells in B. 



(From photomicrographs, X 310.) 



anger, sexual excitation, physical exertion as in athletic 

 contests, acute overwork, acute infection all recapitu- 

 late the phenomena of Graves' disease and produce the 



