290 MAN --AN ADAPTIVE MECHANISM 



still, the energy in the body thus being conserved until 

 phagocytosis overcame the infection. 



Acids and Alkalies 



Laboratory experiments in which an acute acidosis 

 was produced by the injection of various acids - 



A. B. C. 



Section of normal cere- Section of cerebellum Section of cerebellum 

 bellum of cat. of cat after injection of of cat after injection of 



acid sodium phosphate, sodium bicarbonate. 



FIG. 71 . THE COMPARATIVE EFFECTS OF 'AN ACID AND OF AN ALKALI 

 ON THE BRAIN-CELLS OF CATS. 



Compare the Purkinje cells in the three sections, noting in C the con- 

 serving effect of the alkali as compared with the disorganizing effect of the 

 acid in B. 



(From photomicrographs, X 310.) 



hydrochloric acid, acid sodium phosphate, etc. - 

 directly into the circulation gave ample evidence in 

 gross phenomena and in histologic changes of the 



