178 



Dr. A. D. Waller. 



Experiment 6. Direct Excitation. Fresh Pad of same Cat on the 3rd day 

 after death. Excitation as in Experiment 5. Outgoing response through- 

 out. Considerable Diminution of Resistance during Experiment. 



FIG. 6. 



Experiment 7. Direct Excitation. To illustrate summation of effects. 

 Large pad of cat's foot set up 24 hours post mortem. Tetanisation for 

 5 seconds at intervals of 1 minute. Break shock ingoing ; response 

 outgoing. Berne coil; 2 Leclanches, at 1000 units in 1st group, at 

 2000 units in 2nd group. Compensation was adjusted at the com- 

 mencement of each group, and left unaltered during the series ; the 

 galvanometer being short-circuited during each tetanisation, the spot 

 then falls to the zero level. 



