INDEX 



buman hnmeroB, 41; on the fllum 

 terminale in man, 43; on muscles 

 attached to the coccyx in man, 43; 

 on the variabiUty of the muscles, 

 47; on abnormal conditions of the 

 human uterus, 61; on the develop- 

 ment of the mammary glands, 217; 

 on male flshes hatching ova in their 

 moutlis, 218, 449; on the external 

 perpendicular fissure of the brain, 

 265; on the bridging convolutions 

 in the brain of a chimpanzee, 265- 

 266. 



Turnix, sexes of some species of, 613- 

 614, 619. 



Turtle-dove, cooing of the, 486. 



Tuttle, H., on the number of species 

 of man, 233. 



Tyler, E. B., on emotional cries, ges- 

 tures, etc., of man, 120 ; on the ori- 

 gin of the belief in spiritual agen- 

 cies, 131; remorse for violation of 

 tribal usage in marrying, 157; on 

 the primitive barbarism of civilized 

 nations, 193 ; on the origin of count- 

 ing, 193-194; inventions of savages, 

 194; on resemblances of the mental 

 characters in different races of man, 

 238. 



Type of structure, prevalence of, 219. 



Typboeus, stridulating organs of, 396 ; 

 strjdulation of, 396. 



Tyranga sesliva, 595. 



Twins, tendency to produce, heredi- 

 tary, 69. 



Twite, proportions of the sexes in the, 

 327. 



V 



Ugliness, said to consist in an approach 



to the lower animals, 752. 

 Umbrella-bird, 484. 

 Umbrina, sounds produced by, 452. 

 United States, rate of increase in, 68; 



influence of natural selection on the 



progress of, 191; change undergone 



by Europeans in the, 260. 

 Upupa epops, sounds produced by the 



male, 487. 

 Uraniidse, coloration of the, 410. 

 Una Iroile, variety of (=U. lacrymans), 



548. 

 Urodela, 462. 



UroBliote Benjamlni, seznal differences 

 in, 570. 



Use and disuse of parts, efiects of in* 

 creased, 63; influence of, on tba 

 races of man, 261. 



Uterus, reversion in the, 61; more or 

 less divided, in the human subject, 

 61, 67 ; double, in the early progeni- 

 tors of man, 216. 



Taccination, influence of, in preserving 

 from smallpox, 180-181. 



Vancouver Island, Mr. Sproat on the 

 savages of, 243 ; natives of, eradica- 

 tion of facial hair by the, 747. 



Vanellus cristatus, w-ng tubercles o£ 

 the male, 476. 



VanesssB, 403; resemblance of lower 

 surface of, to bark of trees, 407. 



Variability, causes of, 48; in man, 

 analogous to that in the lower aid- 

 mals, 50 ; of the races of man, 232-* 

 233 ; greater in men than in women, 

 294-296; period of, relation of 

 the, to sexual selection, 314-315; 

 of birds, 645; of secondary sexual 

 characters in man, 720. 



Variation, laws of, 50; correlated, 67; 

 in man, 196-197 ; analogous, 204- 

 205 ; analogous, in plumage of birds, 

 498. 



Variations, spontaneous, 67-68. 



Varieties, absence of, between two spe- 

 cies, evidence of their distinctness, 

 223-224. 



Variety,- an object in nature, 637. 



Variola, communicable between man 

 and the lower animals, 23. 



Vaur^al, human bones from, 42. 



Veddahs, monogamous habits of, 761, 



Veitch, Mr., on the aversion of Japa- 

 nese ladies to whiskers, 747. 



Vengeance, satisfying the instinct of, 

 154. 



Venus Erycina, priestesses of, 755. 



Vermes, 360. 



Vermiform appendage, 39. 



Verreaux, M., on the attraction of nu- 

 merous males by the female of an 

 Australian Bombyx, 333. 



Vertebrae, caudal, number of, in ma- 

 caques and baboons, 86; of mon- 



