CONTENTS. 



CHAPTER I. 



PAGE 



A General View of the Organization of the Vertebrata — the 

 Vertebrate Skeleton 1 



CHAPTER II. 



The Muscles and the Viscera — A General View of the Organiza- 

 tion of the Vertebrata 45 



CHAPTER III. 

 The Provinces of the Vertebrata — The Class Pisces . . . 112 



CHAPTER IV. 

 The Class Amphibia 172 



CHAPTER V. 



The Classification and the Osteology of the Reptilia . . . 193 



CHAPTER VI. 

 The Classification and the Osteology of Birds .... 272 



CHAPTER VII. 

 The Muscles and the Viscera of the Sauropsida .... 299 



CHAPTER VIII. 



The Classification and Organization of the Mammalia . . . 319 



