716 



STUDIES IN GENERAL PHYSIOLOGY 



TABLE v 



Since all these ions are related chemically, the objection 

 was possible that we were dealing here, not with the effects 

 of the valence or the electrical charge of the ions, but with 

 a specific chemical effect. It was, therefore, necessary to 

 show that the same effect can be produced by bivalent kations 

 which lie outside of the calcium group. My first experi- 

 ments failed me, since I at first employed too large amounts 

 of the antitoxic salts. I discovered only gradually that the 

 poisonous effects of a sodium-chloride solution may be 

 annihilated by a bivalent kation in quantities much smaller 

 than are given in Table IV, which presents the results of one 

 of my first experiments. My experiments now succeeded. 



4. A large number of experiments were performed with 

 ZnSO 4 as the antitoxic substance for NaCl. The Nad 

 solution used was somewhat more concentrated than that 

 usually employed, namely \\m instead of j^m. 



TABLE VI 



