viii TABLE OF CONTENTS. 



tion — Circulatory system — IsTervous system — Organs of the Senses — Migrations of 

 Birds, Pages 253-264 



CHAPTEE XXX. 

 Divisions of Aves — Natatores — Grallatores — Cursores — Easores — Scansores — Insessores — 

 Eaptores— Saururse, p. 265-279 



CHAPTEE 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 



CHAPTEE XXXn. 

 Orders of Mammalia — ^Monotremata — ^Marsupialia— Edentata — Sirenia — Cetacea — Ungulata 

 — Hyracoidea — Proboscidea — Carnivora — Eodentia — Cheiroptera — Insectivora — Quad- 

 nimaua — Bimana, p. 288-320 



