608 



LAWRENCE W. COLE 



TABLE 4 



Reaction-times in seconds of four frogs (M-P) to chlorides of potassium, sodium, 

 ammonium, and lithium. Strength of solutions, 1 m. Date: April 23. 



Frog M 



Salts. 



KC1 



NaCl 



NH 4 C1 



LiCl 



Trials 



Frog N 



Frog 



Frog P 



