582 



INDEX. 



Todas. infanticide and proportion of 



sexes, 255; practise pciyandry, 



593; choice of husbands amongst, 



593. 



Toe. great, condition of, in the human 



embryo, 11. 

 Totaicus vWosfts proportion of the 



sexes in, 253. 

 Tomtit, blue, sexual difference of co- 

 lour in the, 453. 

 Tonga Islands, beardlessness of the 



Qiitives of, 560, 581. 

 Tooke, Home, on language, 8ii. 

 Tools, Hint, 145 ; used by monkeys, 



81 ; use of, 48, 

 Topknots in birds, 384. 

 Tortoise, voice of the male, 5fi7, 

 Tortures, submitted to by American 



savages, 118. 

 TotanuSj double moult in, 390. 

 Toucans, colours and nidification of 

 the, 455 ; beaks and ceres of the, 

 491. 

 Towns, residence in, a cause of dimi- 

 nished 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 EhynchcBa, 476. 



Trades, affecting the form of the 



skull, 56. 

 Tra;ie/aphus, sexual differences of 

 colour in, 535. 



• scrzptuSf dorsal crest of, 530 ; 



markings of, 543, 544. 

 Tragopan, 220; swelling of the wat- 

 tles of the male, during courtship, 

 383 ; display of plumage by the 

 male, 397 ; raarkmgs of the seXes 

 of the, 428. 

 Tratjops dispar^ sexual difference in 



the colour of, 351. 

 Training, effe<.t of, on the mental 

 difference between the sexes of 

 man, 565. 

 Tinnsfer of miile characters to female 



birds, 470. 

 Transmission, eii'inl, ot nrnamental 

 character.--, to both sexes in mam- 

 mals, 5 V2. 

 Traps, avci.iauce of, by animals, 80; 



use nf. 48. 

 rreachery, to cninrades avoidance of, 

 by savagHS, 1 1 1 



Iremex colwmbcB,, 292. 



Tiibes, extinct, 128; extinction of, 



182. 

 TrichiuSj difference of colour in th« 



sexes of a species of, 294. 

 Trigla, 347. 



Trimen, R., on the proportion of Ih* 

 sexes in South African butterflle*,. 

 250 ; on the attraction of males by 

 the female of Lasiocampa quercuSy 

 252; on Pneumora, 288; on dif- 

 ference of colour in the sexes oi 

 beetles, 294; on moths brilliantly 

 coloured beneath, 315 ; on mimicry 

 in butterflies, 325 ; on Gyn ^iiisa 

 IsiSj and on the ocellated spots of 

 Lepidoptera, 428 ; on Cyllo Led-u 

 429. 

 Trimja^ sexes and young of, 435. 



'• cornnta, 391. 

 TriphcBnT, coloration of the species 



of, 313. 

 Tristram, H. B,, on unhealt'ny dis- 

 tricts in North Africa, 194; oi; 

 the habits of the chaffinch in Pa!e.=- 

 tine, 248; on the birds of thr 

 Sahara, 456; on the nnimaU in- 

 habiting the Sahara, 489. 

 Triton cristatus, 348. 



p tlniipes, 348. 



piTictntiiSy 348. 



Troglodyte skulls, greater than those 



of modern Frenchmen, 55. 

 Trojthdi/tes vuii]ari% 473. 

 Tros;ons, colours and nidification of 



the, 455, 456. 

 Tropic-birds, white only when mature, 



492. 

 Tropics, freshwatei- fishes of the, 



343. 

 Trout, proportion of the sexes in, 

 249; male, pugnacity of the, 332. 

 Trox sabuiosus, stridulation of, 303. 

 Truth, not rare between members o1 

 the same tribe, 118; more highly 

 appreciated by certain tribes, 122. 

 Tulln(;h, Major, ou the immunity v-i 

 the luigro fi'orn certain fevers, 193, 

 Tumbler, almond, change of plumagi 



in the, 238. 

 7'm t/us iiieruln, 455 ; young of, 487 



iniijratorms, 464. 



■ musicus, 455. 



polijglottus, young of^ 4(i7. 



tofqucttusj 455 



