216 



JIHEI KONISHI AND YNGVE ZOTTERMAN 



response than NaCl (0.5 m) and acetic acid (0.005 m). In European carp, 

 the stimulating effects of human saliva, earthworm-extract and milk do not 



J Worm water extract 



/ 



"<^ 



In 



P Touch 



Fig. 1. Electrical responses from the entire palatine nerve of the Swedish 

 carp to the application of various solutions to the palatal organ and to touch. 

 In each tracing are recorded, from top to bottom : the signal showing the 

 moment of application, the integrated response, and the direct spike response. 

 Records N and O were recorded by high amplification. Time in seconds. 



