432 



INDEX. 



Thury, M., on the numerical proportion of 

 male and female births among the Jews, 

 i. 292. 



Thylacinus, possession of the marsupial 

 sac by the male, i. 199. 



Thysanura, i. 33S. 



Tibia, dilated, of the male Crabro cri- 

 brarius, i. 333. 



Tibia and femur, proportions of, in the 

 Aymara Indians, i. 115. 



Tterra del Fuego, marriage-customs of, ii. 

 356. 



Tiger, colors and markings of the, ii. 28T. - 



Tigers, depopulation of districts by, in In- 

 dia, i. 129. 



Tillus elongatus, difference of color in the 

 sexes of, i. 357. 



Timidity, variability of, in the same species, 

 i.39. 



Tineina, proportion of the sexes in, i. 301. 



Tipula, pugnacity of male, i. 339. 



Tits, sexual difference of color in, ii. 166. 



Toads, ii. 24; male, treatment of ova by 

 some, i. 202 ; male, ready to breed before 

 the female, i. 252. 



Toe, great, condition of, in the human em- 

 bryo, i. 17. 



Tomtit, blue, sexual difference of color in 

 the,ii. 166. 



Tonga Islands, beardlessness of the natives 

 of, ii. 307, 333. 



Tooke, Home, on language, i. 53. 



Tools, flint, i. 176; used by monkeys, i. 

 49 ; use of, i. 132. 



Topknots, in buds, ii. 71. 



Tomicus villosus, proportion of the sexes 

 in, i. 305. 



Tortoise, voice of the male, ii. 316. 



Tortures, submitted to by American sav- 

 ages, i. 91. 



Totanus, double moult in, ii. 77. 



Toucans, colors and nidification of the, ii. 

 163 ; beaks and ceres of the, ii. 217. 



Towns, residence in, a cause of diminished 

 6tature, i. 111. 



Toynbee, J., on the external shell of the 

 ear in man, i. 21. 



Trachea, convoluted and embedded in the 

 6ternum, in some birds, ii. 57 ; structure 

 of the, in Jihynchcea, ii. 193. 



Trades, affecting the form of the skull, i. 

 141. 



Tragelaphm, sexual differences of color 

 in, ii. 274. 



Tragelaphm scriptus, dorsal crest of, ii. 

 268 ; markings of, ii. 2S6, 287. 



Tragopan, i. 261 ; swelling of the wattles 

 of the male, during courtship, ii. 68 ; dis- 

 play of plumage by the male, ii. 87; 

 markings of the sexes of the, ii. 128. 



Trngops dispar, sexual difference in the 

 color of, ii. 28. 



Training, effect of, on the mental differ- 

 ence between the sexes of man, ii. 313. 



Transfer of male characters to female 

 birds, ii. 185. 



Transmission, equal of ornamental char- 

 acters, to both sexes in mammals, ii. 2S3. 



Traps, avoidance of, by animals, i. 48 ; use 

 of, i. 132. 



Treachery, to comrades, avoidance of, hy 

 savages, i. 84. 



Tremex colum ba>, i. 354. 



Tribes, extinct, i. 154 ; extinction of, i. 226. 



Trichivs, difference of color in the sexes 

 of a species of, i. 356. 



Trimen, E., on the proportion of the sexes 

 in South African butterflies, i. 301 ; on 

 the attraction of males by the female of 

 Lasiocampa quercus, i . 308 ; on Pneu- 

 mora, i. 348; on difference of color in 

 the sexes of beetles, i. 356; on moths 

 brilliantly colored beneath, i. 3S4; on 

 mimicry in butterflies, i. 398; on Oyna- 

 nisa Isls, and on the ocellated spots of 

 Lepidoptera, ii. 127; on Cyllo Leda,u. 

 128. 



Tringa, sexes and young of, ii. 207. 



Tringa cornuta, ii. 78.' 



Triphama, coloration of the species of, i. 

 3S2. 



Tristram. H. B., on unhealthy districts in 

 North Africa, i. 235 ; on the habits of the 

 chaffinch in Palestine, i. 298; on the 

 birds of the Sahara, ii. 164 ; on the ani- 

 mals inhabiting the Sahara, ii. 214. 



Triton cristatus, ii. 23. 



Triton palmipes, ii. 23. 



Triton punctatus, ii. 23. 



Troglodytes vulgaris, ii. 189. 



Trogons, colors and nidification of the, ii. 

 163, 165. 



Tropic-birds, white only when mature, ii. 

 218. 



Tropics, fresh-water fishes of the, ii. 17. 



Trout, proportion of the sexes in, i. 299 ; 

 male, pugnacity of the, ii. 3. 



Trox sabulosus, stridulation of, i. 369. 



Truth, not rare between members of. the 

 same tribe, i. 91 ; more highly appre- 

 ciated by certain tribes, i. 96. 



Tulloch, Major, on the immunity of the 

 negro from certain fevers, i. 234. 



Tumbler, almond, change of plumage in 

 the, i. 284. 



Turdus merirta, ii. 162 ; young of, ii. 210. 



Turdus migratorius, ii..l77. 



Turdus musicus, ii. 162. 



Turdus polyglottiis, young of, ii. 210. 



Turdus torquatus, ii. 162. 



Turkey, swelling of the wattles of the 

 male, ii. 68 ; variety of, with a topknot, 

 ii. 71 ; recognition of a dog by a, ii. 106 ; 

 wild, pugnacity of young male, ii. 46 ; 

 wild, notes of the, ii. 58 ; male, wild, ac- 

 ceptable to domesticated females, ii. 114 ; 

 wild, first advances made by older fe- 

 males, ii. 116 ; wild, breast-tuft of bristles 

 of the, ii. 171. 



Turkey-cock, scraping of the wings of, 

 upon the ground, ii. 59 ; wild, display of 

 plumage by, ii. S3 ; fighting habits of, ii. 

 94. 



Turner, Prof. ."W., on musculnr fasciculi in 

 man referable to the panniculus carno- 

 sus, i. 19 ; on the occurrence of the su- 



