1912.] Innervation and Symmetrical Muscles. 231 



and myself,* in the reaction of the ipsilateral muscle during the progress of 

 the stimulation. 



The statement was made above that the relative values of ipsilateral 



A.peroneaH 

 coil, 17 cent. 



Fig. 10. — Extensor muscles, vastocrurei, of right and left knees. In the left-hand record 

 the stimulation of left peroneal is weak and little above threshold value ; in the 

 right-hand record the stimulation of the same nerve is repeated, but with increased 

 though still moderate intensity. Decerebrate cat. 



Fig. 11. — Extensor muscles, vastocrurei, of right and left knees. Stimulation of left 

 peroneal with moderately weak faradisation. The reflex effect opens by being 

 " identical : ' in the two muscles, but later changes to " reciprocal " as the stimulation 

 continues. Decerebrate cat. 



inhibition and contralateral excitation in the extensors remain about the 

 same over a wide range of intensities of reflex stimulation, although the 



* Ibid. 



