Urosticte Benjamini, sexual differences in.
Use and disuse of parts, effects of; influence of, on the races of man.
Uterus, reversion in the; more or less divided, in the human subject; double, in the early progenitors of man.
Vaccination, influence of.
Vancouver Island, Mr. Sproat on the savages of; natives of, eradication of facial hair by the.
Vanellus cristatus, wing tubercles of the male.
Vanessae, resemblance of lower surface of, to bark of trees.
Variability, causes of; in man, analogous to that in the lower animals; of the races of man; greater in men than in women; period of, relation of the, to sexual selection; of birds; of secondary sexual characters in man.
Variation, laws of; correlated; in man; analogous; analogous, in plumage of birds.
Variations, spontaneous.