KINETIC DISEASES 229 



tion and infection are, perhaps, the most dominant. In 

 many cases careful inquiry will disclose some deeply 

 intrenched disturbing emotional factor a great grief, 

 the existence of harassing home conditions, poverty 



A. B. 



Section of normal adrenal of cat. Section of adrenal of cat after 



infection. 



FIG. 52. EFFECT OF INFECTION (STREPTOCOCCAL) ON THE ADRENALS 



OF A CAT. 



Note the disappearance of nuclei, the general loss of cytoplasm and the 

 vacuolated spaces in B. 



(From photomicrographs, X 1640.) 



or shame, business reverses, overwhelming responsi- 

 bilities, an unhappy love affair, or some acutely dis- 

 tressing thought, which drives the kinetic system 

 incessantly. In my own experience, in cases of 

 Graves' disease for the causation of which no factor 



