INDEX. 791 



Tardus mertUa, 518; young of, 554; turdus migratoriu^, 529; 

 turd^is musicus, 518; turdus polyglottus, young of, 554; turdus tor- 

 quntus, 518. 



Turkey, wild, pugnacity of young male, 414; wild, notes of the, 

 425; swelling of the wattles of tlie male, 434; variety of, with a top- 

 knot, 488; recognition of a dog by a, 468; male, wild, acceptable to 

 domesticated females, 475 ; wild, first advances made by older 

 females, 477; wild, breast-tuft of bristles of the, 525. 



Turkey-cock, scraping of the wings of, upon the ground, 426; 

 wild, display of plumage' by, 447; fighting habits of, 458. 



Turner, Prof. W., on muscular fasciculi in man referable to the 

 panniculus camosus, 14; on the occurrence of the supra-condyloid 

 foramen in the human humerus, 24; on muscles attached to the 

 coccyx in man, 25; on the JUum ter.minale in man, 25; on the varia- 

 bility of the muscles, 30; on abnormal conditions of the human 

 uterus, 43; on the development of the mammary glands, 184; on 

 male fishes hatching ova in their mouths, 185, 391 ; on the external 

 perpendicular fissure of the brain, 228; on the bridging convolutions 

 in the brain of a chimpanzee, 228. 



Turnix, sexes of some species of, 542, 547. 



Turtle-dove, cooing of the, 425. 



Tuttle, H., on the number of species of man, 199. 



Tylor, E. B., on emotional cries, gestures, etc., of man, 96; on the 

 origin of the belief in spiritual agencies, 106; remorse for violation 

 of tribal usage in marrying, 130; on the primitive barbarism of 

 civilized nations, 162; on the origin of counting, 162; inventions 

 of savages, 164 ; on resemblances, of the mental characters in 

 different races of man, 203. 



Type of structure, prevalence of, 186. 



TypTmus, stridulating organs of, 341 ; stridulation of, 343. 



Twins, tendency to produce, hereditary, 51. 



Twite, proportion of the sexes in the, 281. 



Ugliness, said to consist in an approach to the lower animals, 666, 



Umbrella-bird, 423. 



UmbHna, sounds produced by, 394. 



United States, rate of increase in, 50; influence of natural selec- 

 tion on the progress of, 161 ; change undergone by Europeans in 

 the, 223. 



tlpiipa epops, sounds produced by the male, 427. 



Uraniidae. coloration of the, 356. 



Uii/i troile, variety of (= U. lacrymans), 482. 



Urodela, 394. 



Urosticte Benjamini, sexual differences in, 502. 



Use and disuse of parts, effects of, 36; influence of, on the races 

 of man, 224. 



Uterus, reversion in the, 43; more or less divided, in the human 

 subject, 43, 48; double, in the early progenitors of man, 183. 



Vaccination, influence of, 151. 



Vancouver Island, Mr. Sproat on the savages of, 208; natives of, 

 eradication of facial hair by the, 662. 



VaiieUus cristatus, wing tubercles of the male, 414. 



Vnnessm, 350 ; resemblance of lower surface of, to bark of 

 trees, 353. 



