604 



ELECTRICAL STIMULATION OF THE FROG'S HEART. 



reduplication. Thus in Cj (Fig. 195) stimulation at the end of 

 auricular relaxation, ventricular latency is 1"'2, in Cj stimulation 

 halfwaj' to ventricular maximum latency is 1", and in C3, when 

 stimulation, is at ventricular maximum, the latency is for the 



ventricle only 6". 



Fig. 195. 



Ci to C3. Levers as in A. Auricular Stimulation (minimal) of Cooled Heart. 



On the other hand, more powerful stimulation of the auricle 

 causes reduplications of the ventricle, which are at all times of 



D... 



D, to Di. Levers as in A. Auricular Stimulation (maximal) of Cooled Heart. 



