EFFECT OF IRRITATION OF A POLARIZED NERVE. 

 EXPERIMENT 195. 



411 



Irritation alone. 



Strength of the 

 tiou. 



Height of 

 tho cou- 

 tractioua. 



Irritation with polarization. 



Strength of the con- 

 stant current. 



Height of 

 the con- 

 tractions. 



Remarks. 



1 Daniel : 

 Rheochord. 



cent. 

 .1100 



1.8 

 1.8 

 1.8 



1.8 



1.8 



0.2 



0. 



0. 



0.6 



0.7 



0.7 



0.4 



1 Daniel : 

 Rheochord . 



cent. 

 ...10 



1.8 

 i.8 

 1.8 



Kana esculenta. A de- 

 scending irritating 

 current applied to tho 

 nerve below an ascend- 

 ing ])olariziug eiurent. 

 Descending polarizing 

 current. 



Ascending polarization. 



An initatiiig' current derived from 1 Daniel, " rlieocliord 1109," pro- 

 duced the same etl'ect when the nerve was i)olarJzed in either direction 

 with a current derived from 1 Daniel. With a current derived from 1 

 Daniel, " rheochord 10," the excitability of the nerve was increased to 

 the side of the kathode. In the positive i)hase of a current derived from 

 1 Daniel, "rheochord lO,' the excitability of the nerve was abolished 

 for an iriitatinu- current derived from 1 Daniel, " rheochord 1109." 



EXPERIMENT 196. 



