CONTENTS. Vll 



CHAPTER LV. 



The Archosaurian branch of Reptiles and its characters — Characters 

 of the Dinosauria — Suborders and families of the Dinosauria — 

 Characters of the Crocodilia — Suborders and families of the 

 Crocodilia — Characters of the Ornithosauria — Suborders and 

 families of the Ornithosauria — Literature of Reptilia, . 1 150-1207 



CHAPTER LVI. 



Characters of Aves — Distribution of Aves in time — Relations of the 



Ratitae to the Carinatae, 1208- 1220 



CHAPTER LVII. 



Characters of the order Saururae — Characters of the Ratitae — Char- 

 acters of the Carinatae — Suborders and families of the Carinatae 

 —Literature of Aves, 1221-1244 



CHAPTER LVIII. 



General structure of the Mammalia — Teeth of Mammalia — Skull — 

 Vertebral column- — Sternum — Pectoral limb — Pelvic limb — Dis- 

 tribution in time of Mammals — Mutual relations of the different 

 orders — Phylogeny of Mammals, 1245-1262 



CHAPTER LIX. 



Characters of the Prototheria — Characters of the Monotremata — 

 Families of the Monotremata — Characters and affinities of the 

 Multituberculata — Families of the Multituberculata — Charac- 

 ters of the Metatheria — Characters of the Marsupialia — Sub- 

 orders and families of the Marsupialia, .... 1263-1288 



CHAPTER LX. 



Characters of the Eutheria — Characters of the Edentata — Families 

 of the Edentata — Characters of the Cetacea — Suborders and 

 families of the Cetacea — Characters of the Sirenia — Families of 

 the Sirenia, 1289-1311 



