ELECTROMOTIVE ACTION IN NERVE 



291 



TABLE II. 

 Rana esculenta (cooled frog). Nerve with dependent leg. 



TABLE III. 

 R. temporaries (cooled frog). Sciatic with connected leg. 



The only difference is the appearance in the first case of a more 

 or less definite negative initial swing, often indicated only by the 

 somewhat retarded entrance of the positive variation. 



It is only in rare cases (when the ascending current produces 



