713 



In the second place vigorous hearts have a large positive T-oscil- 

 lation. This is likewise easy to understand, as vigorous hearts possess 

 a good conductivit}'. 



There exists moreover a strong overlapping of the basal and the 

 apical-negativity, and consequently the basal negativity is at the 

 end strongly expressed. 



Finally the considerable variability of the T-oscillation is deter- 

 mined in this sense by the velocity of impulse-transmission as has 

 been explained above. 



These short remarks may suffice- here. I intend to explain these 

 and further results of these experiments in an ulterior more elaborate 

 communication. 



Amste7xlani, Oct. 1917. Physiological Laboratory. 



