Ardea nycticorax, cries of.
Ardeola, young of.
Ardetta, changes of plumage in.
Argenteuil.
Argus pheasant, display of plumage by the male; ocellated spots of the; gradation of characters in the.
Argyll, Duke of, on the physical weakness of man; the fashioning of implements peculiar to man; on the contest in man between right and wrong; on the primitive civilisation of man; on the plumage of the male Argus pheasant; on Urosticte Benjamini; on the nests of birds.
Argynnis, colouring of the lower surface of.
Aricoris epitus, sexual differences in the wings of.
Aristocracy, increased beauty of the.
Arms, proportions of, in soldiers and sailors; direction of the hair on the.
Arms and hands, free use of, indirectly correlated with diminution of canines.
Arrest of development.
Arrow-heads, stone, general resemblance of.
Arrows, use of.
Arteries, variations in the course of the.
Artery, effect of tying, upon the lateral channels.
Arthropoda.
Arts practised by savages.
Ascension, coloured incrustation on the rocks of.
Ascidia, affinity of the lancelet to; tad-pole like larvae of.
Ascidians, bright colours of some.
Asinus, Asiatic and African species of.
Asinus taeniopus.
Ass, colour-variations of the.
Ateles, effects of brandy on an; absence of the thumb in.
Ateles beelzebuth, ears of.
Ateles marginatus, colour of the ruff of; hair on the head of.
Ateuchus cicatricosus, habits of.
Ateuchus stridulation of.
Athalia, proportions of the sexes in.
Atropus pulsatorius.
Attention, manifestations of, in animals.
Audouin, V., on a hymenopterous parasite with a sedentary male.
Audubon, J.J., on the pinioned goose; on the speculum of Mergus cucullatus; on the pugnacity of male birds; on courtship of Caprimulgus; on Tetrao cupido; on Ardea nycticorax; on Sturnella ludoviciana; on the vocal organs of Tetra cupido; on the drumming of the male Tetrao umbellus; on sounds produced by the nightjar; on Ardea herodias and Cathartes jota; on Mimus polyglottus; on display in male birds; on the spring change of colour in some finches; on migration of mocking thrushes; recognition of a dog by a turkey; selection of mate by female birds; on the turkey; on variation in the male scarlet tanager; on the musk-rat; on the habits of Pyranga aestiva; on local differences in the nests of the same species of birds; on the habits of woodpeckers; on Bombycilla carolinensis; on young females of Pyranga aestiva acquiring male characters; on the immature plumage of thrushes; on the immature plumage of birds; on birds breeding in immature plumage; on the growth of the crest and plume in the male Ardea ludoviciana; on the change of colour in some species of Ardea.
Audobon and Bachman, MM., on squirrels fighting; on the Canadian lynx.
Aughey, Prof., on rattlesnakes.
Austen, N.L., on Anolis cristatellus.
Australia, not the birthplace of man; half-castes killed by the natives of; lice of the natives of.
Australia, South, variation in the skulls of aborigines of.
Australians, colour of new-born children of; relative height of the sexes of; women a cause of war among the.
Axis deer, sexual difference in the colour of the.
Aymaras, measurements of the; no grey hair among the; hairlessness of the face in the; long hair of the.
Azara, on the proportion of men and women among the Guaranys; on Palamedea cornuta; on the beards of the Guaranys; on strife for women among the Guanas; on infanticide; on the eradication of the eyebrows and eyelashes by the Indians of Paraguay; on polyandry among the Guanas; celibacy unknown among the savages of South America; on the freedom of divorce among the Charruas.
Babbage C., on the greater proportion of illegitimate female births.
Babirusa, tusks of the.
Baboon, revenge in a; rage excited in, by reading; manifestation of memory by a; employing a mat for shelter against the sun; protected from punishment by its companions.
Baboon, Cape, mane of