790 INDEX. 



Tortures, submitted to by American savages, 134. 



Totanus, double moult in, 442. 



Toucans, colors and nidification of tlie, 518; beaks and ceres of 

 tbe, 560. 



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



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



Tracbea, convoluted and imbedded in tbe sternum, in some birds, 

 425; structure of tbe, in RhynclKBa, 542. 



Trades, affecting tbe form of tbe skull, 62. 



7'ragelaphus, sexual differences of color in, 611; tragelaphus 

 scriptus, dorsal crest of, 606; markings of, 621. 



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

 sbip, 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, on 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. 



Tremex cohimbce, 331. 



Tribes, extinct, 145; extinction of, 207. 



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



THgla, 394. 



Trigonocepbalus, noise made by tail of, 401, 



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

 terflies, 283; on tbe attraction of males by tbe female Lasiocampa 

 quercus, 284 ; on Pneuraora, 326 ; on difference of color in the 

 sexes of beetles, 333; on moths brilliantly colored beneath, 357; on 

 mimicry in butterflies, 367, 368; on Oynanisa Ms, and on the ocel- 

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



Tnnga, sexes and young of, 553; tringa cornuta, AAA. 



Tnphcena, coloration of tbe 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 the Sahara, 

 519; on the animals inhabiting tbe Sahara, 557. 



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

 395. 



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



Troglodytes vulgaris, 539. 



Trogons, colors and nidification of tbe, 518. 



Tropic- birds, white only when mature, 560. 



Tropics, freshwater fishes of tbe, 389. 



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

 tbe, 377. 



Trox sahulosus, stridulation of, 343. 



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

 highly appreciated by certain tribes, 138. 



Tullocb, Major, on tbe immunity of tbe negro from certain 

 fevers, 220. 



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



