432 



INDEX. 



TiiuBY, M., on the numerical proportion of 

 mail' and female births among the Jews, 

 i. 292. 



Thylacinim, possession of tlie marsupial 

 sac by the male, i. I'jy. 



TllYSANURA, i. SJS. 



Tim A, dilated, of the male Crahro cri- 

 brariim, i. *};?. 



TiniA ami femur, proportions of, In the 

 Aymara Indians, i. 115. 



TiKr.RA del Fuejfo, marriage-customs of, 11. 

 856. 



Tk'.er, colors and markinffs of the, ii. 2S7. 



TiGEES, depopulation of districts by, in In- 

 dia, i. 129. 



Ti/lus elongatus, difference of color in the 

 se.xes oC i. 357. 



Tlmidity, variability of, in the same species, 



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



Tipidii. i)UL'n;icity of male, i. 339. 



Tits, sexual <litt'iTence of color in, ii. 1G6. 



Toads, ii. 'it ; 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. 106. 



Tonga Islands, beardlessness of the natives 

 of, ii. 307, 83:3. 



TooKE, Ilorne, on language, i. 53. 



Tools, flint, 1. 176; used by monkeys, i. 

 49 ; use of, i. 132. 



Topknots, in birds, ii. 71. 



Toniicrm rillosus, proportion of the sexes 

 in, i. 805. 



Tortoise, voice of the male, ii. 816. 



ToRTrKES, submitted to by American sav- 

 ages, 1. 91. 



ToUiniui, double moult In, ii. 77. 



TorcANS, colors and nidification of the, ii. 

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



Towns, residence in, a cause of diminished 

 stature, i. 111. 



TovNBEE, J., on the external shell of the 

 ear in man, i. 21. 



Trachea, convoluted and embedded in the 

 Kternum. in some birds, ii. 57 ; structure 

 of the, in Iili)jm-h(V(i. ii. 198. 



Trades, affectiiig the form of tlie skulL i. 

 141. 



TrageUiphvs, sexual differences of color 

 in, ii. 274. 



Trofiehiphwi script us. dorsal crest of^ ii. 

 268 ; markings of, ii. 286, 287. 



Tragopan, i. 261 ; swelling of the wattles 

 of the male, during courtship, ii. 6$ ; dis- 

 play of plumage by the male. ii. 87 ; 

 markings of the sexes of the, ii. 128. 



Tragops tlUpitr. sexual difference in the 

 color of, ii. 28. 



Training, effect of, on the mental differ- 

 ence between the sexes of man, ii. 813. 



Transfer of male characters to female 

 birds, 11. 1S5. 



Transmission, equ.il, of ornamental char- 

 acters, to both sexes in mammals, ii. 2s3. 



Tkaps, avoidance ot bv animals, i. 4S ; use 

 of; i. 132. 



Treachery, to comrades, avoidance of; by 

 savages, 1. 84. 



Tremer cohimbw. i. S.M. 



Tribes, extinct, i. 154; extinction oC 1.226. 



7'ric/tiiis. difference of color in the se.xes 

 of a sjiecies of, i. .'556. 



Trimen, I;., on the proportion of the sexes 

 in South African butterflies, i. 301 ; on 

 the attraction of males by the female of 

 Lasiocampa qutrctis, 1. 303; on I'neii- 

 niorti. i. 348; on difference of color in 

 the .sexes of beetles, i. 856; on moths 

 brilliantly colored beneath, 1. 351; on 

 mimicry" in butterflies, i. S&S; on Gyna- 

 nisa A-/.K,and on the ocellated spots of 

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

 128. 



Tiinga. sexes and young of; il. 207. 



'J'rhiga cornutii. ii. 78. 



Trip/uvna, coloration of the species of, 1. 

 882. 



Tristram, II. B., on unhealthv districts In 

 North Africa, i. 285: on the "habits of the 

 chaflineh in Talestine, i. 29S; on the 

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

 mals inhabiting the Sahara, ii. 214. 



Triton criMtitiis. ii. 23. 



'J'ritini jKilmijirx. ii. 23. 



Triton jiinuiiitns. ii. 23. 



'Troijloilijtex riilgitrix. ii. 189. 



Trogons, colors and nidification of the, Ii. 

 16:3. 165. 



Tropic-biuds, white onh- when mature, ii. 

 218. 



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



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

 male, pugn.icity of the. ii. 3. 



Tror saOutosus. stridulation oC i. 369. 



Truth, not rare between members of the 

 same tribe, i. 91 ; more highly appre- 

 ciated by certain tribes, i. 96. 



TuLLocn.Major. on the immunity of the 

 negro from certain fevers, i. 234. 



Tumbler, almond, change of plumage In 

 the, i. 2.81. 



Tardus iiiemla, ii. 162; young of, ii. 210. 



Turdus DiiffrntoriiM. ii. 177. 



Turd us muj<icus. ii. 162. 



Turdus polyff/ottuA. young of, ii. 210. 



Turdus torijuatus, 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, jjugnacity of young male, ii. 46 ; 

 wild, notes of "the. if. 58 ; male, wild, ac- 

 ceptjible to domesticated females, ii. 114; 

 wild, lirst advances made by older fe- 

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

 ofthe. ii. 171. 



Turkey-cock, .sci-aping of the wings at, 

 upon the gmuud, ii. 59 ; wild, dispby of 

 plumage bv, ii. 83 ; fighting habits of; ii. 

 94. 



Turner, Prof. "W.. on muscular fasciculi In 

 m.-ui referable to the panniculus carno- 

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



