22 Chapter II. 



actions that are caused by the sensile experience of 

 pleasure or pain, are intelligent ergo." 



But let us return to the term "intelligence" and in- 

 vestigate its proper meaning which has been obscured 

 by pseudo-psychology. The question of the notional 

 constituents of this term is not an empty verbal conten- 

 tion, nor a dispute about trifles, but an elementary ques- 

 tion of the utmost importance for scientific animal 

 psychology. 



