viii TABLE OF CONTENTS. 



tion Circulatory system Nervous system Organs of the Senses Migrations of 

 Birds, Pages 253-264 



CHAPTER XXX. 



Divisions of Aves Natatores Grallatores Cursores Easores Scansores Insessores 



Eaptores Saururae, p. 265-279 



CHAPTER XXXI. 



General characters of the Class Mammalia Skeleton Teeth Dental formula Digestive 

 system Heart Lungs Nervous system Integumentary appendages Development 

 Primary divisions, p. 280-287 



CHAPTER XXXII. 



Orders of Mammalia MonotremataMarsupialia Edentata Sirenia Cetacea Ungulata 

 Hyracoidea Proboscidea-^Carnivora Rodentia Cheiroptera Insectivora Quad- 

 rumana Birnana, . p. 288-320 



