CONTENTS. xvii 



CHAPTER LXIII. 



General characters of the class Aves Feathers Vertebral column 

 Skull Pectoral arch and fore-limb Pelvic arch and hind-limb 

 Digestive system Respiratory system Circulatory system 

 Reproductive organs Nervous system and organs of sense Dis- 

 tribution of Birds in time, 57*-593 



CHAPTER LXIV. 



General divisions of the class Aves Characters and families of the 



Cursores, 594-600 



CHAPTER LXV. 



Characters and families of Natatores Characters and sections of 

 Grallatores Characters and sections of Rasores Gallinacei 

 Columbacei, . . . ' ' . . . . 600618 



CHAPTER LXVI. 



Characters and families of Scansores Characters of Insessores Coni- 

 rostrss Dentirostres Tenuirostres Fissirostres Characters 

 and divisions of Raptores, . . . . . . 619-633 



CHAPTER LXVII. 



Saurornithes Saumrse Odontornithes Odontolcse Odontotormse 



Literature, . . . 633-638 



CHAPTER LXVIII. 



General characters of the Mammalia Skeleton Pectoral arch and 

 fore-limb Pelvic arch and hind-limb Teeth Dental formula 

 Digestive system Circulatory system Respiratory system Re- 

 productive system Mammary glands Nervous system Integu- 

 mentary appendages Distribution of Mammalia in time 

 Classification of the Mammalia, ..... 639-655 



CHAPTER LXIX. 



Characters of Monotremata Distribution of Monotrcmes in time 

 Characters and divisions of Marsupialia Distribution of Marsu- 

 pials in time, . 656-67 1 



CHAPTER LXX. 



Characters and families of Edentata Distribution of Edentata in 



time, 672-680 



CHAPTER LXXI. 



Characters of Sirenia Distribution in time Characters and families 



of Cetacea Distribution in time, ..... 680-692 



CHAPTER LXXII. 



General characters of Ungulata Perissodactyla Artiodactyla Ru- 

 minantia Structure of the stomach in Ruminants Dentition of 

 Ruminants Sections of Ruminants Distribution of Ungulata in 

 time, 692-723 



