xxvi THE PLAY OF ANIMALS. 



CHAPTER PAGE 



IV. — The play of animals {continued). Love plays . 229 



Love plays among young animals .... 253 



Courtship by means of the arts of movement . . 257 

 Courtship by means of the display of unusual or 



beautiful forms or colors 265 



Courtship by means of noises and tones . . . 271 



Coquetry in the female 283 



V. — The psychology of animal play .... 287 



Editor's appendix on organic selection . . . 329 



Index 333 



