The Characteristic of Nerve. 217 



Exp. 5.— Cat. Sciatic Nerve. E - 17000 w. 



Opt. 



No effect | 



F. 



V. 



FY. 



5FV 2 . 



C. 



% 



-0022 

 '0050 

 o '0170 

 -1700 



-5000 



1 -oooo 



2-88 

 1-44 

 0-72 

 0-36 

 0-18 

 0-18 



0-0063 

 -0072 

 0-0122 

 0-0612 

 -0900 

 -1800 



0-071 

 0-052 

 -044 

 0-110 

 0-081 

 0-162 



66910 

 14700 

 2165 

 108 

 18 

 9 



sec. 

 -000026 

 -000059 

 -000202 

 0-002023 

 -005890 

 -011780 







About 20 minutes later. 









0:006 



2-88 



-0173 



0-249 



24530 



-000071 





0-008 



1-44 



-0115 



0-083 



9200 



-000094 





0*012 



0-72 



-0086 



0-031 



3066 



-000141 



Opt. 



'030 



-36 



-0108 



-019 



613 



-000353 



0-500 



0-18 



-0900 



0-081 



18 



-005890 



Exp. 5. 



/ 4 /tf I B H 10 09 O S 07 0-6 0-6 0-4 0-3 OB 01 00 



Volt. 



The method of trial was to start with given voltage and find mini- 

 mum effective capacities. 



In the first group of trials the characteristic is 2165 ; in the second 

 it is 613. 



The constants of minimum effective stimuli at various voltages are 

 higher in the first than in the second group. 



Short stimuli are relatively more effective in the first group ; long 

 stimuli in the second group. 



