404 MENTAL EVOLUTION IN ANIMALS. 



Vintschgau, on reaction-time for taste, 133. 



Virchow, Professor, on distinction between instinct and reason, 160. 



Volition, physiological aspect of, 53, 352. 



Vorticella, chased by another infusorium, 81. 



Vulture, sense of sight of the, 91 ; of smell, 92. 



w. 



Wallace, A. E., on erolution of Man, 9 ; on changed instincts of nidification, 



212 ; on nidification as due to imitation, 225-6 ; on migration of the 



lemming, 283 ; on migration, 288 ; on homing faculty, 291. 

 Water-hen, aquatic instincts of the, 253. 

 Water-owzel, changed instincts of the, 254. 

 Waterton, on instincts of young pheasants, 232 ; on instincts of crossetl 



ducks, 199. 

 Wasps. See Insects. 

 Weasel, feigning death, 307. 

 Weber, on sense of temperature, 96. 



Wedderburn, Sn* D., on carnivorous habits of wasps, 245. 

 Weir, on Wallace's theory of nidification as influenced by imitation, 226. 

 Weissenborne, on a migration of dragon-flies, 286. 

 Whately, Archbishop, on cattle sucking bones, 247 ; on the functions of the 



syllogism, 337. 

 White, C. Coral, on a fox feigning death, 314-15. 

 White, the Eev. Gr., on loss of taste for flesh shown by dogs of China, 233 ; 



on a leveret reared by a cat, 217. 

 Widgeon, attachment of a, to a peacock, 183-4. 

 Wildness, acquired instinct of, 195-7, 

 Wilks, Dr., on association of ideas by talking birds, 12 i. 

 Will. See Volition. 



Willoughby, on instincts of the capon, 171. 

 Wilson, on improved nest-building by the Baltimore Oriel, 210. 

 Wilson, Sir J., on instincts of a tamed dingo dog, 232. 

 Wittich, von, on reaction-time for taste, 133. 

 Wolf, feigning death, 304 ; imagination in the, 147. 

 Wolff, Madame de Meuron, on a migration of butterflies, 285. 

 Wolvei'ine, understanding of mechanism by the, 351. 

 Woodcock, wildness and tameness of the, 197; carrying young, 211. 

 Wood-louse, feigning death, 309. 

 Wood-pecker, changed instincts of the G-round, 254 ; peculiar instincts of the 



Californian in storing acorns, 255. 

 Worms. See Annelida. 

 Wrangle, on geese feigning death, 303-4. 

 Wren, local variation of instinct of the, 210, 246 ; variation in nest-building 



of the golden-crested, 182. 

 Wuiidt, on analogy between conscious and unconscious memory, 114. 



Y. 



Yarrel, on Birds, 222, 247. 



Youatt, on the Dog, 150, 198, 241 ; on the Sheep, 224, 227. 



z. 



Zinken, Dr., on mistaken instinct of flies, 167. 



