XIV ILLUSTRATIONS 



PAGE 



Steller Sea-Lions 121 



The Harp Seal . . 133 



The Ribbon Seal 139 



The Pacific Walrus 143 



Bornean Naked Bat ... 157 



Fruit-Eating Bats, or Flying "Foxes" 175 



Prairie-" Dog" Burrow . 207 



American Beavers and Their Work 213 



The Families of Native Mice and Rats, Illustrated by Skins of 



Typical Species ... . ... 223 



Diagram of the Hare and Rabbit Family in North America . 

 TEXT ILLUSTRATIONS 



PAGE 



Skeletons of Man and Gorilla 12 



Chimpanzees and Orang-Utans Dining in the New York Zoological 



Park . ... .... 15 



A Dressed-Up Chimpanzee 17 



Japanese Red-Faced Monkey 26 



Diana Monkey . 27 



Dead Gelada Baboon . 28 



White-Throated Sapajou 31 



Black-Faced Spider Monkey ... 32 



Common Marmoset 36 



The Ruffed Lemur . 38 



Canada Lynx 4£f 



