790 INDEX. 



Tortures, submitted to "by American savages, 134. 



'J utaitus, double moult in, 442. 



Toucans, colors and r'dification of tlic, 518; Leaks and ceres of 

 tlie, 560. 



Towns, residence in, a cause of diminished stature, 35. 



Toynbee, J., on tbe external shell of the ear in man, 15. 



Trachea, convoluted and imbedded in the sternum, in Bome birds, 

 425; structure of tbe, in Khyrichcea, 542. 



Trades, affecting- tbe form of tbe skull, G2. 



TragdaphuK, sexual differences of color in, Gil; tragelaphus 

 scriptna, dorsal crest of, 606; markings of, G21. 



Tragopau, 249; swelling of tbe wattles of tbe male, during court- 

 ship, 434; display of plumage by tbe male, 451; marking of tbe 

 sexes of tbe, 487.* 



Tragops dispar, sexual difference in tbe color of, 399. 



Training, effect of, oil tbe mental difference between tbe sexes of 

 man, 645. 



Transfer of male characters to female birds, 536. 



Transmission, equal, of ornamental characters, to botb sexes in 

 mammals, 618. 



Traps, avoidance of, by animals, 90; use of, 54. 



Treachery, to comrades, avoidance of, by savages, 126. 



Tremcx columbce, 331. 



Tribes, extinct, 145; extinction of, 207. 



Trichius, difference of color in the sexes of a species of, 333. 



Trigla, 394. 



Trigonocephalus, noise made by tail of, 401. 



Trimen, R., on tbe proportion of the sexes in South African but- 

 terflies. 283; on the attraction of males by tbe female Laaiocampa 

 quercus, 284 on Pnevmortt, 826 ; on difference of color in tbe 

 sexes of beetles, 333; on moths brilliantly colored beneath, G57: on 

 mimicry in butterflies, 367, 368; on Gynanisa Isis, and on the ocel- 

 lated spots of Lepidoptera, 486; on Cyllo Leda, 486. 



Trin ga, sexes and young of, 553; tringa cornuta, 444. 



Triphcena, coloration of the species of, 355. 



Tristram, H. B., on unhealthy districts in North Africa, 221; on the 

 habits of the chaffinch in Palestine, 281; on the birds of tbe Sahara, 

 519; on the animals inhabiting the Sahara, 557. 



Triton cristatas, 394; triton palmipes, 394; triton punctatus, 394, 

 395. 



Troglodyte skulls, greater than those of modern Frenchmen, 62. 



Troglodytes vulgrris, 539. 



Trogons, colors and nidification of the, 518. 



Tropic- birds, white only when mature, 560. 



Tropics, freshwater fishes of the, 389. 



Trout, proportion of the sexes in, 281; male, pugnacity of 

 tbe, 377, 



Trox salndosus. stridulation of, 343. 



Truth, not rare between members of the same tribe, 133; more 

 highly appreciated by certain tribes, 138. 



Tullocl-. Major, on the immunity of the negro from certain 

 fevers, 220. 



Tumbler, almond, change of plumage in the, 269. 



