Butler, A.G., on sexual differences in the wings of Aricoris epitus; courtship of butterflies; on the colouring of the sexes in species of Thecla; on the resemblance of Iphias glaucippe to a leaf; on the rejection of certain moths and caterpillars by lizards and frogs.
Butterfly, noise produced by a; Emperor; meadow brown, instability of the ocellated spots of.
Butterflies, proportion of the sexes in; forelegs atrophied in some males; sexual difference in the neuration of the wings of; pugnacity of male; protective resemblances of the lower surface of; display of the wings by; white, alighting upon bits of paper; attracted by a dead specimen of the same species; courtship of; male and female, inhabiting different stations.
Buxton, C., observations on macaws; on an instance of benevolence in a parrot.
Buzzard, Indian honey-; variation in the crest of.
Cabbage butterflies.
Cachalot, large head of the male.
Cadences, musical, perception of, by animals.
Caecum, large, in the early progenitors of man.
Cairina moschata, pugnacity of the male.