PI.ATK CVIII. 



FIG. 291. Diagram c,f a muscle and nerves, arranged to 

 show the use of the eleetrotoiiii- i-h;ui','i- in our m-i i . 

 a stimulus fur another,];. I. II. to ilitl'cr -nt, m.li's of 

 placing the nerve of A <i I!; III. the so-culled " para- 

 doxical contraction." 



FIG. 292. Apparatus for showing the ed'erts of vary ill',' tenipe 



FIG 253. Tliuimlu -tion a')parahis .,f l)n I'.ois Keymond, with the magnetic intervuptor. 



FK;. 294. S'-iien f above. 



