LIST OF ILLUSTRATIONS xi 



PAGE 



Horns of Mrs. Gray's Waterbuck 297 



Gnu 300 



Heads of Gnus 301 



Hartebeest on ant-hill 302 



Duiker 303 



Wild Dog 305 



Sand Flea 308 



Tick 310 



Mosquito 315 



Tsetse Flies 320 



Fossil tsetse-fly 321 



Trypanosomes 323 



Tsetse-fly 326 



Termites 328 



Queen 329 



Ant-hill of unusual shape 333 



Aard-Wolf 335 



Skull of Aard-Wolf 336 



Open-bill 338 



Shell of Ampullaria 339 



Hornbills . 341 



Head of Ground Hornbill 342 



Whale-headed Stork 344 



Darter 345 



Marabou Stork . . . . 348 



Head of Skimmer 350 



Skimmer 352 



Hammerhead 357 



Secretary Bird 358 



African Hoopoe 359 



European Hoopoe 360 



Great Crested Touraco 361 



Head of Crowned Crane 363 



Crowned Crane 364 



Helmet Shrike 365 



Weaver Finch 369 



Weaver Finch (dancing) 370 



Mouse Bird 372 



Shrike 373 



