128 



ANIMAL ELECTRICITY. LECTURE VI. 



characteristic effect of acidification is a diminution of 

 the quotient ^Jk, cind the characteristic effect of basi- 

 fication an augmentation of the quotient ^/a-. 



^^4444^^^^}^^ 



v\V 



Fig. 54.— Effect of a weak alkaline bath (KOH. N .„ or 0-285 per 100) upon 



A. and K. 



Fig. 55. — Effect of a weak acid bath (propionic acid N/,„) upon A. and K. 



The influence of carbonic acid and of tetanisat ion. — 

 We have seen in a previous lecture that the nerve is 

 altered by tetanisation precisely as it is altered by 



