468 TEPHRODORNIS. 
INDEX. 
TORTURES. 
Tephrodomis , young of, ii. 190. 
Terai, i. 237. 
Termites , habits of, i. 364. 
Terns, white, ii. 228 ; and black, ii. 
230. 
Terns, seasonal change of plumage 
in, ii. 228. 
Terror, common action of, upon the 
lower animals and man, i. 39. 
Testudo nigra , ii. 28. 
Tetrao cupido , battles of, ii. 50 ; 
sexual difference in the vocal organs 
of, ii. 56. 
Tetrao plutsianellus , dances of, ii. 68 ; 
duration of dances of, ii. 100. 
Tetrao scoticus , ii. 170, 185, 194. 
Tetrao tetrix , ii. 170, 185, 194; pug- 
nacity of the male, ii. 45. 
Tetrao umhellus , pairing of, ii. 49; 
battles of, ii. 50 ; drumming of the 
male, ii. 61. 
Tetrao urogalloidcs , dances of, ii. 100. 
Tetrao urogaltus , pugnacity of the 
male, ii. 45. 
Tetrao urophasianus , inflation of the 
(esophagus in the male, ii. 57. 
Tlutmnobia, young of, ii. 190. 
Thaunnalea picta, display of plumage 
f by the male, ii. 89. 
7 hecla , sexual differences of colouring 
in species of, i. 389. 
Theda rubi y protective colouring of, i. 
392. 
Theridion, i. 337 ; stridulation of 
males of, i. 339. 
Theridion lineaturn, variability of, i. 
338, 
Thomisus citrons , and T. floricolcns , 
difference of colour in the sexes of, 
i. 337. 
Thompson, J. H., on the battles of 
sperm-whales, ii. 240. 
Thompson, W., on the colouring of the 
male char during the breeding sea- 
son, ii. 14; on the pugnacity of 
the males of Gallinula chloropus , 
ii. 41 ; on the finding of new mates 
by magpies, ii. 103 ; on the finding 
of new mates by Peregrine falcons, 
ii. 104. 
Thorax, processes of, in male beetles, 
i. 370. 
Tiiorell, T., on the proportion of the 
sexes in spiders, i. 315. 
Thornback, difference in the teeth of 
the two sexes of the, ii. 6. 
Thoughts, control of, i. 101. 
Thrush, pairing with a blackbird, ii. 
113; colours and nidification of 
the, ii. 170. 
Thrushes, characters of young, ii. 
| 185, 269. 
Thug, his regrets, i. 94. 
I TnuMM, absence of, in Ateles and Hy - 
hhates , i. 140. 
Thury, M., on the numerical propor- 
tion of male and female births 
among the Jews, i. 301. 
Thylacinus , possession of the marsu- 
pial sack by the male, i. 208. 
! Tuysanura, i. 348. 
I Tibia, dilated, of the male Crabro C)'i- 
brarius , i. 343. 
Tibia and femur, proportions of, in 
the Aymara Indians, i. 119. 
Tierra del Fuego, marriage-customs 
of, ii. 373. 
Tiger, colours and markings of the, 
ii. 302. 
Tigers, depopulation of districts by, 
in India, i. 134. 
Tillus elongatus , difference of colour 
in the sexes of, i. 368. 
Timidity, variability of, in the same 
species, i. 40. 
Tineina, proportion of the sexes in, 
i. 310. 
Tipnla , pugnacity of male, i. 349. 
Tits, sexual difference of colour in, 
ii. 174. 
Toads, ii. 25; male, treatment of ova 
by some, i. 210 ; male, ready to 
breed before the female, i. 260. 
Toe, great, condition of, in the human 
I embryo, i. 17. 
| Tomtit, blue, sexual difference of co- 
1 lour in the, ii. 174. 
Tonga Islands, beardlessness of the 
natives of, ii. 322, 349. 
Tooke, Horne, on language, i. 55. 
Tools, tlint, i. 183 ; used by monkeys, 
i. 51 ; use of, i. 137. 
Topknots in birds, ii. 74. 
Tomicns villosus , proportion of the 
sexes in, i. 314. 
Tortoise, voice of the male, ii. 331. 
Tortures, submitted to by American 
savages, i. 95. 
