1W3.] K. MIYAKE.— INFLUENCE OF THE SALTS ETC. 233 



Conclusion. 



From the above results we may conclude as follows : 



1. Sodium and potassium salts are antagonized by each 

 other. The curve of antagonism between these salts 

 shows two maxima and the location of these maxima 

 is almost constant, occurring the point of the propor- 

 tion of 5 : 25. This coincides with the result which was 

 observed by Osterhout i:) on the wheat seedlings. 



2. The antagonism between these salts is due to that 

 between cations as well as anions as already observed. 



3. The antagonism between anions is small in comparison 

 with that between cations. 



Chemical Laboratory, College of Agriculture, 



Tohoku Imperial Uxtversity, Sapporo, Japan. 



July 1913. 



1) Osterhout— Bot. Gaz., 48, 1909, 98-104. 



