32 



EXERCISE V 



on foot with one post of the short-circuit key in the secondary circuit of 

 induction. Connect similarly with fine wire the binding-screw of the 

 single-wire hand electrode to the other post of the short-circuit key.- The 



rJ -VA 



>Aaa/VVWVV\/x„ 



\•/^\v,'^^^y 



^a.p 



Text-fig. 16. Unipolar excitation of exposed transverse surface of lateral 

 column of spinal cord at first cervical level ; effect on arterial pressure. . 

 Decapitate preparation (E. G. Cox and N. B. Dreyer). z*p-, zero level of 

 pressure ; s, signal marking time of faradization ; 1", time in sees. In b the 

 quicker drum makes more obvious the cardiac acceleration. 



copper plate forms the diffuse electrode ; the single-wire hand electrode is 

 the stigmatic electrode. With a fine camel's-hair brush wipe off blood 



