184 Dr. A. D. Waller. 



for 5 seconds; + and - signify outgoing and ingoing directions of 

 break currents. Large arrow denotes excitation ; small arrow denotes 

 response; numbers below indicate voltage of response. 



Fid. 13. 



Excitation. 

 Eight foot. i hour P.M. 4 L. 1000 + 



1 hour. 4 L. 10,000 + 



Left foot. 3 hours. 4 L. 1000 



hours. 10,000 + 



After this series of four trials at 10,000, a series of four trials at 

 1000 gave no effect. On transfer of an electrode to fresh pad ingoing 

 response observed at 1000. 



