xii TABLE OP CONTENTS 



Chaptee VI. Amphibia pages 



Introductory 173-179 



Extinct Amphibia 180-183 



Present-day Amphibia 183-203 



The development of the frog 203-209 



Chapter VII. Reptilia 



Introductory 210-213 



Extinct reptiles 213-224 



Modern reptiles 225-259 



Chapteb VIII. AvES (Birds) 



Introductory 260-276 



Extinct birds 276-281 



Birds of to-day 281-312 



Ratitse 281-288 



Carinatee 288-312 



Development of birds 314r-323 



Chapter IX. Mammalia 



Introductory 324r-336 



Extinct mammals 336-345 



Mammals of the present 345-359 



Prototheria 347-352 



Eutheria (Didelphia) 352-359 



Chapter X. Mammalia (continued) Placental Mammals 



Unguiculata 360-363 



Dermoptera 363 



Chiroptera 363-364 



Carnivora 364-371 



Rodentia 371-373 



Edentata 373-377 



Tubulidentata 377-378 



Primates 378-388 



Artiodactyla 389-392 



Perissidactyla 392-396 



Sirenia 396-398 



Hyracoidea 398-400 



