356 UNDERSTANDING OF HUMAN LANGUAGE. 



flection apparently it distinguishes that which can be 

 carried out from that which is impotent. And its conduct 

 is in accordance with its belief. For instance, when man 

 pretends to throw a stone at a dog in a locality where the 

 animal knows that there are no stones to be thrown, such a 

 locality as an Irish bog or a stretch of sandy coast it gives 

 itself no concern about the futile threat, does not get rapidly 

 out of man's range, as it would do under other circumstances 

 (Houzeau). 



