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
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