IXDEX. 



433 



pracondyloid foramen in the human hu- 

 merus, i. 27 ; on muscles attached to the 

 coecvx in man, i. 29 ; on the filum ter- 

 minate in man, i. 29 ; on the variability 

 of the muscles, i. 105; on abnormal con- 

 ditions of the human uterus, i. 119 ; on 

 the development of the mammary glands, 

 i. 201; on male fishes hatching ova in 

 their mouths, i. 202. 



Ti'misc, sexes of some species of, ii. 192, 

 198. 



Turtle-dove, cooing of the, ii. 58. 



Tuttle, H., on the number of 6pecies of 

 man, i. 218. 



Tylok, E. B., on emotional cries, gestures, 

 etc., of man, i. 52 ; on the origin of the 

 belief in SDiritual agencies, i. 64 ; on the 

 primitive barbarism of civilized nations, 

 1. 174 ; on the origin of counting, i. 174 ; 

 on resemblances of the mental characters 

 in different races of man, i. 223. 



Type of structure, prevalence of, i. 203. 



Typhaus, stridulating organs of, i. 366; 

 stridulation of, i. 369. 



Twins, tendency to produce, hereditary, 

 i. 128. 



Twite, proportion of the sexes in the, i. 

 297. 



U. 



Ugliness, said to consist in an approach to 

 the lower animals, ii. 337. 



TJmbrella-Bied, ii. 55, 56. 



Uinbrina, sounds produced by, ii. 22. 



United States, rate of increase in, i. 126 ; 

 influence of natural selection on the prog- 

 ress of, i. 172; change undergone by 

 Europeans in the, i. 237. 



JJpupa epops, sounds produced by the 

 male, ii. 60. 



Uraniid^e, coloration of the. i. 1S3. 



Uria traile, variety of (= U. lacrymans), 

 ii. 122. 



Ueodela, ii. 22. 



Urodicte Benjamini, sexual differences 

 in, ii. 145. 



Use and disuse of parts, effects of, i. 112 ; 

 influence of, on the races of man, i. 238. 



Uterus, reversion in the, i. 118; more or 

 less divided, in the human subject, i. 118, 

 125 ; double, in the early progenitors of 

 man, i. 19S. 



V. 



Vaccination, influence of, i. 162. 



Vancouver Island, Mr. Bproat on the sav- 

 ages of i. 230 ; natives of, eradication of 

 facial hair by the, ii. 331. 



Vanellus cristatus, wing-tubercles of the 

 male, ii. 44. 



Vanessa*, i. 375 ; resemblance of lower sur- 

 face of, to bark of trees, i. 3S0. 



Fariability, causes of, i. 107; in man, 

 analogous to that in the lower animals, i. 

 108 ; of the races of man, i. 217 ; greater 

 in men than in women, i. 267 ; period of, 



38 



relation of the, to sexual selection, i. 287 : 

 of birds, ii. 119 ; of secondary 6exual 

 characters in man, ii. 305. 



Variation, correlated, i. 29 ; laws of. i 

 109; in man, i. 178; analogous, i. 1S6 ; 

 analogous, in plumage of birds, ii. 71. 



Variations, spontaneous, i. 126. 



Varieties, absence of, between two spe- 

 cies, evidence of their distinctness, i. 207. 



Variety, an object in nature, ii. 220. 



Variola, communicable between man and 

 the lower animals, i. 11. 



Vaureal, i. 28. 



Veddahs, monogamous habits of, ii. 847. 



Veitcu, Mr., on the aversion of Japanese 

 ladies to whiskers, ii. 332. 



Vengeance, instinct of, i. 85. 



Venus Erycina, priestesses of, ii. 341. ' 



Vermes, i. 318. 



Vermiform appendage, i. 26. 



Verreaux, M., on the attraction of numer- 

 ous males bv the female of an Australian 

 Bombyx, i. 303. 



Vertebrae, caudal number of, in macaques 

 and baboons, i. 144 ; of monkeys, partly 

 embedded in the body, i. 145. 



Vertebrata, ii. 1 ; common origin of the, 

 i. 195; most ancient progenitors of, i. 

 203 ; origin of the voice in air-breathing, 

 ii. 315. 



Vesicula prostatica, the homologue of 

 the uterus, i. 30, 199. 



Vibrissa, represented by long hairs in the 

 eyebrows, i. 24. 



Vidua, ii. 173. 



Vidua axillaris, i. 260. 



Villerme, M., on the influence of plenty 

 upon stature, i. 110. 



Vinson, Aug., on the male of Epeira ni- 

 gra, i. 329. 



Viper, difference of the sexes in the, ii»28. 



Virey, on the number of species of man, i. 

 218L 



Virtues, originally social only, i. 90 ; grad- 

 ual appreciation of, i. 159. 



Viscera, variability of, in man, i. 105. 



Viti Archipelago, population of the, i. 217. 



Vlacovich, Prof., on the ischio-pubic 

 muscle, i. 122. 



Vocal music of birds, ii. 48. 



Vocal organs of man, i. 56 ; of birds, i. 

 57; ii. 156; of frogs, ii. 27; of the Inses- 

 sores, ii. 53 ; difference of, in the sexes of 

 buds. ii. 53 ; primarily used in relation to 

 the propagation of the species, ii. 314. 



Vogt. Carl, on the origin of species, i. 1 ; 

 on the origin of man. 1. 4; on the semi- 

 lunar fold in man, i. 23 ; on the imitative 

 faculties of microcephalous idiots, i. 55; 

 on microcephalous idiots, i. 116; on 

 skulls from Brazilian caves, i. 210; on 

 the evolution of the races of man, i. 221 ; 

 on the formation of the skull in women, 

 ii. 302; on the Ainos and negroes, ii. 

 806; on the increased cranial difference 

 of the sexes in man with raw-develop- 

 ment, ii. 314; on the obliquity of the 

 eye in the Chinese and Japanese, ii. 3*28. 



