MAN --AN ADAPTIVE MECHANISM 



alone, thus showing that alkalies tend to conserve while 

 acids destroy the mechanism of energy transformation. 

 (Figs. 71, 72, 73.) 



Clinical evidence of the protective value of alkalis 

 is shown by the value of the administration of sodium 



A. B. c. 



Section of normal liver Section of liver of cat Section of liver of cat 

 of cat. after injection of acid after injection of sodium 



sodium phosphate. bicarbonate. 



FIG. 73. THE COMPARATIVE EFFECTS OF AN ACID AND OF AN ALKALI 



ON THE LIVERS OF CATS. 



Note the disappearance of cytoplasm and of nuclei and the vacuolated 

 spaces in B as compared with the conservation of cell substance in C. 

 (From photomicrographs, X 1640.) 



bicarbonate in cases in which acidosis is present or 

 is impending, and by the widespread medical use of the 

 conserving alkalis and the restricted use of the destroy- 

 ing acids. No one recommends acid mineral springs. 



