INFANCY AND COURTSHIP OF ANIMALS 441 



A comment above made may be repeated here. For the 

 experimental behaviorist, the observations here recorded offer 

 innumerable suggestions toward the careful , analysis of instinct. 

 However the behavior data of courtship, as of any other activity, 

 cannot be adequately handled until the facts of sensory dis- 

 crimination are gathered. Until that time, however, such dis- 

 cussions as the present are both interesting and stimulating. 



