INDEX.
Abbot, C., on the battles of seals.
Abductor of the fifth metatarsal, presence of, in man.
Abercrombie, Dr., on disease of the brain affecting speech.
Abipones, marriage customs of the.
Abortion, prevalence of the practice of.
Abou-Simbel, caves of.
Abramis brama.
Abstraction, power of, in animals.
Acalles, stridulation of.
Acanthodactylus capensis, sexual differences of colour in.
Accentor Modularis.
Acclimatisation, difference of, in different races of men.
Achetidae, stridulation of the; rudimentary stridulating organs in female.
Acilius sulcatus, elytra of the female.
Acomus, development of spurs in the female of.
Acridiidae, stridulation of the; rudimentary stridulating organs in female.
Acromio-basilar muscle, and quadrupedal gait.
Acting.
Actiniae, bright colours of.
Adams, Mr., migration of birds; intelligence of nut-hatch; on the Bombycilla carolinensis.
Admiral butterfly.
Adoption of the young of other animals by female monkeys.
Advancement in the organic scale, Von Baer's definition of.
Aeby, on the difference between the skulls of man and the quadrumana.
Aesthetic faculty, not highly developed in savages.
Affection, maternal; manifestation of, by animals; parental and filial, partly the result of natural selection; mutual, of birds; shewn by birds in confinement, for certain persons.
Africa, probably the birthplace of man; South, crossed population of; South, retention of colour by the Dutch in; South, proportion of the sexes in the butterflies of; tattooing practised in; Northern, coiffure of natives of.
Agassiz, L., on conscience in dogs; on the coincidence of the races of man with zoological provinces; on the number of species of man; on the courtship of the land-snails; on the brightness of the colours of male fishes during the breeding season; on the frontal protuberance of the males of Geophagus and Cichla; male fishes hatching ova in their mouths; sexual differences in colour of chromids; on the slight sexual differences of the South Americans; on the tattooing of the Amazonian Indians.
Age, in relation to the transmission of characters in birds; variation in accordance with, in birds.
Agelaeus phoeniceus.
Ageronia feronia, noise produced by.
Agrion, dimorphism in.
Agrion Ramburii, sexes of.
Agrionidae, difference in the sexes of.
Agrotis exclamationis.
Ague, tertian, dog suffering from.
Ainos, hairiness of the.
Aitchison, Mr., on sheep.
Aithurus polytmus, young of.
Albino birds.
Alca torda, young of.
Alces palmata.
Alder and Hancock, MM., on the nudi-branch mollusca.
Allen, J.A., vigour of birds earliest hatched; effect of difference of temperature, light, etc., on birds; colours of birds; on the relative size of the sexes of Callorhinus ursinus; on the name of Otaria jubata; on the pairing of seals; on sexual differences in the colour of bats.
Allen, S., on the habits of Hoplopterus; on the plumes of herons; on the vernal moult of Herodius bubulcus.
Alligator, courtship of the male; roaring of the male.
Amadavat, pugnacity of male.
Amadina Lathami, display of plumage by the male.
Amadina castanotis, display of plumage by the male.
Amazons, butterflies of the; fishes of the.
America, variation in the skulls of aborigines of; wide range of aborigines of; lice of the natives of; general beardlessness of the natives of.
America, North, butterflies of; Indians of, women a cause of strife among the; Indians of, their notions of female beauty.
America, South, character of the natives of; population of parts of; piles of stones in; extinction of the fossil horse of; desert-birds of; slight sexual difference of the aborigines of; prevalence of infanticide in.
American languages, often highly artificial.
Americans, wide geographical range of; native, variability of; and negroes, difference of; aversion of, to hair on the face.
Ammophila, on the jaws of.
Ammotragus tragelaphus, hairy forelegs of.