Toxic AND ANTITOXIC EFFECTS OF IONS 715 



pure NaCl solution in a way similar to that of Ca ions 

 (see Table IV). 



TABLE III 



TABLE IV 



That the threshold for the antitoxic effects of Ba, Mg, 

 Sr has the same magnitude as that of Ca may be indicated 

 by a single experiment with Ba (Table V). 



It can be seen that the threshold of the antitoxic effect 

 of barium is almost identical with that for Ca under similar 

 conditions. 



