256 ' Waller 



double synapse theory that the tirst synapse is more profoundly affected 

 than the second. I still prefer, however, not to make this assumption, nor 

 yet that of the double synapse, and to repeat what appears to me to be the 

 most that we may legitimately infer, viz. : that under the influence of 

 strychnine, transmission of a reflex impulse is blocked principally at the 

 junction between aflfereut nerve flbre and spinal cord cell. 



