;; 



iz 



13 



zz 



Qiven neither hiO 

 nor ih sacch 



Offered 

 HaO 



Offered 

 IM sacch. 



C-iven nether HsO 

 nor IM sacch. 



Offere'd HaO 



Offered IM sacch. 



Given neiiher HeO 

 norlM sacch. 



Offered HeO 



Offered 

 JM sacch 



Given neither HeO Offered 

 nor IM sacch HeO 



Given neither hkO 

 nor IM sacch. 



Offered HaO 



Offered JM sacch 



Given neither HaO 

 nor IM sacch. 



Offered MiO 



Offered 

 IM sacch. 



Given neither HaO 

 nr IM sacch 



Offered HiO 



Offered IM sacch. 



Given neither HeO nor IM sacch. 



Offered HsO 



Offered IM sacch 



Fig. 3 Curves of response to various solutions and distilled water. IM saccharose; M/10 quinine hydrochloride; 2M sodium chloride; 



— distilled water. 

 Except where indicated by asterisk, the ordinate length represents the total weighted response, as defined on page 59, obtained from four trials made in the course of a single day. The 

 asterisks indicate cases where for some reason, usually the weakness of the animal, it was impossible to complete the four trials of the day. In these instances the ordinate length 

 represents the per cent of response based on the number of trials actually made. 



75 . 76 



