250 



Prof. C. S. Sherrington. Nervous Rhythm [Feb. 3, 



important factor in determining the existence and characters of the rhythmic 

 reflex. Evidence of this was constantly met in the experiments. In fig. 7 

 the two observations A and B illustrate an aspect of it. Stepping is more 

 marked in B than in A although the intensity of one only of the rival stimuli 

 was altered. Conversely, the change of intensity by even a little of one of 

 the antagonist stimuli may make all the difference to whether the combination 

 be effective or not for rhythmic stepping. My experience put generally is 



