INDEX. 



Amateur naturalists, difficulties of, 2, 



3, 7, 8. 

 Angora goats in South Africa, 207. 

 Aquatic habits of birds, origin of, 283. 

 Argon, discovery of, 26. 

 Automatic reasoning, 25. 



Barking of dogs, 33. 



Bccf-eating habits, influence on his- 

 tory of, 144. 



Bonavia, Dr, on callosities, 108. 



Bos frontosus, 132. 

 longifrons^ 1^2. 

 primigenins^ 131. 



Brunton, Dr Lauder, on vestigial hunt- 

 ing instinct, 55. 



Buck-jumping, origin of, 83. 



IjuII, pugnacity of, 160. 



Cackling habit in fowls, 268. 

 Caffre cats, 237. 

 Callosities on horse, 105. 

 Canine liars, 38. 

 Cat as man's partner, 227. 



method of hunting, 232. 

 Cats, cleanliness of, 263. 



and snakes, resemblance be- 

 tween, 241. 

 tortoise-shell and sandy, 239. 

 Cattle, courage of, 151. 

 Chinese pig, 211. 

 Cleanliness of cats, 263. 

 Clucking, habit of, 276. 

 Confidence in man, influence of, 289. 

 suggested explan- 

 ation of, 293. 

 Co-operation among dogs, 35. 



Courage of cattle, 151. 

 of horse, gi. 

 place of, in natui'c, 296. 

 Cow, method of feeding, 79. 

 Crocodiles in tropical rivers, 124. 

 Crowing of cock, 277. 

 Cunning and caution of many carni- 

 vores, 257. 

 Cuvier on domestic animals, 41. 

 Cynomorphism, 44. 



Darwin on Argentine sheep-dogs, 49. 

 on earthworms, 27. 

 on pugnacity of game cocks, 



Darwinism, illuminating power of, 23. 



Deer, white tail of, 311. 



Difficulties of amateur naturalists, 2, 



3, 7, 8. 

 Dog, origin of faculties of, 29. 

 Dogs, barking of, 33. 

 Domestic fowls, habits of, 268. 

 sheep, origin of, 177. 

 Domestication, influence of, on char- 

 acter, 271. 

 Donkey, ancestry of, 109. 

 coloration of, 112. 

 braying of, 118. 

 ears of, 117. 

 obstinacy of, 122. 

 Dread of snakes, 255. 

 Ducks, difference between tame and 

 wild, 285. 



Eagles preying on cats^, 247. 

 Ears of dogs, 66. 

 liarthworms, 27. 



