LIST OF ILLUSTRATIONS. 



Walruses Fighting . Frontispiece. 



Sight in Darkness 1 



A Family Meal 15 



Lion's Claws 18 



Caught at Last 31 



A Clever Beast 35 



Stumpy 41 



Long-neck 43 



Elephant's Tooth from above . 45 



Section of Elephant's Tooth . 46 



Section of Elephant's Skull . 47 



Cousin Sarah 55 



After the Bath 63 



Proboscis Monkey 72 



New World Old World . . 73 

 Monkey Skulls from Old and 



New World 74 



Spider Monkey 79 



Marmozet 80 



Hyoid Bone of Howler Monkey 82 



Aye-aye 83 



Chamois 87 



Lion and Oryx 90 



Manatee 99 



Caught! 112 



The Last Seal A Vision of 



the Future 119 



Wing of Bat 139 



Wing Bones of Duck and Bat 140 



Pipistrelle 144 



Horse-shoe Bat 145 



Long-eared Bat ... . . 145 



Feather Tracts 151 



Swift Sparrow 155 



Gannet Gull Tern Penguin 158 

 Sparrow Kingfisher Grebe 



Woodpecker Lark . . 162 



Details of Bird's Wing ... 168 



The Ostrich Dance 169 



Poison Gland 192 



Coral Snake of Brazil .... 197 



Monkeys and Dead Snake . . 199 



Chameleon . 204 



Frog 215 



Toad 218 



The Tinker's Nest 231 



An Unwelcome Capture ... 247 



Touch-hair of Insect .... 260 



Leg of Grasshopper 266 



Eyes and Eyelets of Bee . . . 267 



Eye of Fly 268 



Diagram of Mosaic Vision . . 269 



Spider's Web 277 



Crayfish 288 



Oyster 303 



Fresh-water Mussel . . 309 



