104 



APPENDIX I. 



its contraction to break the circuit. The current 

 will then have lasted the time necessary for the 

 transmission of the nervous agent from the point 

 A of the nerve to the muscle, and, moreover, that 

 necessary for the muscular contraction to break the 

 circuit. But by repeating the experiment, with the 

 sole difference that the chronoscopic current is made 

 to act upon a point B of the nerve farther from the 

 muscle than A, and by taking the difference of the 

 times required in both cases, the time which elapses 

 while the nervous agent is travelling from point B 

 to point A will be found. 



FIG. 1. 



Fig. 1 shows the experiment, not exactly as made 



