NATURAL BALANCE 125 



repeated several times before flight is resumed, 

 and is observed more commonly during the 

 breeding season. 



The consideration of balance, as observed 

 in the Animal World, is an important item in 

 our study ; for though this instance of the 

 robin may seem trivial, the case, neverthe- 

 less, is typical of nature — i.e., " Nature in 

 her purity " — perfect adjustment, perfect 

 equilibrium. 



