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682
todas.
INDEX.
turdus.
- Todas, infanticide and proportion of sexes, 255; practise polyandry, 593; choice of husbands amongst, 593.
- Toe, great, condition of, in the human embryo, 11.
- Tomicus villosus proportion of the sexes in, 253.
- Tomtit, blue, sexual difference of colour in the, 458.
- Tonga Islands, beardlessness of the natives of, 560, 581.
- Tooke, Horne, on language, 86.
- Tools, flint, 145; used by monkeys, 81; use of, 48.
- Topknots in birds, 384.
- Tortoise, voice of the male, 567,
- Tortures, submitted to by American savages, 118.
- Totanus, double moult in, 390.
- Toucans, colours and nidification of the, 455; beaks and ceres of the, 491.
- Towns, residence in, a cause of diminished stature, 31.
- Toynbee, J., on the external shell of the ear in man, 14.
- Trachea, convoluted and imbedded in the sternum, in some birds, 374; structure of the, in Rhynchœa, 476.
- Trades, affecting the form of the skull, 56.
- Tragelaphus, sexual differences of colour in, 535.
- scriptus, dorsal crest of, 530; markings of, 543, 544.
- Tragopan, 220; swelling of the wattles of the male, during courtship, 383; display of plumage by the male, 397; markings of the sexes of the, 428.
- Tragops dispar, sexual difference in the colour of, 351.
- Training, effect of, on the mental difference between the sexes of man, 565.
- Transfer of male characters to female birds, 470.
- Transmission, equal, of ornamental characters, to both sexes in mammals, 542.
- Traps, avoidance of, by animals, 80; use of, 48.
- Treachery, to comrades, avoidance of, by savages, 111
- Tremex columbœ, 292.
- Tribes, extinct, 128; extinction of, 182.
- Trichius, difference of colour in the sexes of a species of, 294.
- Trigla, 347.
- Trimen, R., on the proportion of the sexes in South African butterflies, 250; on the attraction of males by the female of Lasiocampa quercus, 252; on Pneumora, 288; on difference of colour in the sexes of beetles, 294; on moths brilliantly coloured beneath, 315; on mimicry in butterflies, 325; on Gynanisa Isis, and on the ocellated spots of Lepidoptera, 428; on Cyllo Leda, 429.
- Tringa, sexes and young of, 485.
- cornuta, 391.
- Triphœna, coloration of the species of, 313.
- Tristram, H. B., on unhealthy districts in North Africa, 194; on the habits of the chaffinch in Palestine, 248; on the birds of the Sahara, 456; on the animals inhabiting the Sahara, 489.
- Triton cristatus, 348.
- palmipes, 348.
- punctatus, 348.
- Troglodyte skulls, greater than those of modern Frenchmen, 55.
- Troglodytes vulgaris, 473.
- Trogons, colours and nidification of the, 455, 456.
- Tropic-birds, white only when mature, 492.
- Tropics, freshwater fishes of the, 343.
- Trout, proportion of the sexes in, 249; male, pugnacity of the, 332.
- Trox sabulosus, stridulation of, 303.
- Truth, not rare between members of the same tribe, 118; more highly appreciated by certain tribes, 122.
- Tulloch, Major, on the immunity of the negro from certain fevers, 193.
- Tumbler, almond, change of plumage in the, 238.
- Turdus merula, 455; young of, 487.
- migratorius, 464.
- musicus, 455.
- polyglottus, young of, 487.
- torquatus, 455
