124 THE NATURE OF THE ELECTRICAL BREAK-EXCITATION. 



original exciting current, provided that the whole of the fibres of a 

 nerve-trunk give as strong a polarisation-current as those whose 

 excitation we observed in the case of the gastrocnemius, which is 

 not altogether certain. Unfortunately I do not possess the ap- 

 paratus necessary for this experiment, and I must ask the reader to 

 be content for the present with the evidence which I have been 

 able to bring forward. 



