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.
Amphibia, affinity of, to the ganoid fishes; vocal organs of the.
Amphibians, breeding whilst immature.
Amphioxus.
Amphipoda, males sexually mature while young.
Amunoph III., negro character of, features of.
Anal appendages of insects.
Analogous variation in the plumage of birds.
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