xiv CONTENTS 



CHAPTER XXIII 



PAGE 



The Rabbit ...... 418 



CHAPTER XXIV 

 Mammalia . ... . 459 



CHAPTER XXV 

 Embryology . .... 478 



CHAPTER XXVI 

 Classification and Evolution . . .511 



CHAPTER XXVII 

 The Animal in the World .... 530 



Appendix : Practical Work 551 



Index . . ... 589 



