368 MESSRS. F. GOTCH AND V. HORSLEY 



SECTION 3. GENERAL CHARACTER OF THE ELECTRICAL EFFECTS IN THE COKD. 



The earliest experiments we made upon the cord showed that pronounced electrical 

 changes always occurred in any portion of the lower dorsal and lumbar regions when 

 some other portion in continuity was excited electrically. The simplest method of 



Fig. 10. 



excitation was that of inserting needles into the cord, the needles being connected 

 with wires attached to the secondary circuit of the iriductorium. It is obvious that if 

 the excitation was carried out upon the cord whilst still in connection with the 

 cerebrum, any resultant effects in the former would be the sum of the direct excitatory 



