Brent, Mr., on the courtship of fowls.
Breslau, numerical proportion of male and female births in.
Bridgeman, Laura.
Brimstone butterfly, sexual difference of colour in the.
British, ancient, tattooing practised by.
Broca, Prof., on the occurrence of the supra-condyloid foramen in the human humerus; anthropomorphous apes more bipedal than quadrupedal; on the capacity of Parisian skulls at different periods; comparison of modern and mediaeval skulls; on tails of quadrupeds; on the influence of natural selection; on hybridity in man; on human remains from Les Eyzies; on the cause of the difference between Europeans and Hindoos.
Brodie, Sir B., on the origin of the moral sense in man.
Bronn, H.G., on the copulation of insects of distinct species.
Bronze period, men of, in Europe.
Brown, R., sentinels of seals generally females; on the battles of seals; on the narwhal; on the occasional absence of the tusks in the female walrus; on the bladder-nose seal; on the colours of the sexes in Phoca Groenlandica; on the appreciation of music by seals; on plants used as love-philters, by North American women.
Browne, Dr. Crichton, injury to infants during parturition.
Brown-Sequard, Dr., on the inheritance of the effects of operations by guinea-pig.
Bruce, on the use of the elephant's tusks.
Brulerie, P. de la, on the habits of Ateuchus cicatricosus; on the stridulation of Ateuchus.
Brunnich, on the pied ravens of the Feroe islands.
Bryant, Dr., preference of tame pigeon for wild mate.
Bryant, Captain, on the courtship of Callorhinus ursinus.
Bubas bison, thoracic projection of.
Bubalus caffer, use of horns.
Bucephalus capensis, difference of the sexes of, in colour.
Buceros, nidification and incubation of.
Buceros bicornis, sexual differences in the colouring of the casque, beak, and mouth in.
Buceros corrugatus, sexual differences in the beak of.
Buchner, L., on the origin of man; on the use of the human foot as a prehensile organ; on the mode of progression of the apes; on want of self-consciousness, etc., in savages.
Bucholz, Dr., quarrels of chamaeleons.
Buckinghamshire, numerical proportion of male and female births in.
Buckland, F., on the numerical proportion of the sexes in rats; on the proportion of the sexes in the trout; on Chimaera monstrosa.
Buckland, W., on the complexity of crinoids.
Buckler, W., proportion of sexes of Lepidoptera reared by.
Bucorax abyssinicus, inflation of the neck-wattle of the male during courtship.
Budytes Raii.
Buffalo, Cape.
Buffalo, Indian, horns of the.
Buffalo, Italian, mode of fighting of the.
Buffon, on the number of species of man.
Bufo sikimmensis.
Bugs.
Buist, R., on the proportion of the sexes in salmon; on the pugnacity of the male salmon.
Bulbul, pugnacity of the male; display of under tail-coverts by the male.
Bull, mode of fighting of the; curled frontal hair of the.
Buller, Dr., on the Huia; the attachment of birds.
Bullfinch, sexual differences in the; piping; female, singing of the; courtship of the; widowed, finding a new mate; attacking a reed-bunting; nestling, sex ascertained by pulling out breast feathers.
Bullfinches, distinguishing persons; rivalry of female.
Bulls, two young, attacking an old one; wild, battles of.
Bull-trout, male, colouring of, during the breeding season.
Bunting, reed, head feathers of the male; attacked by a bullfinch.
Buntings, characters of young.
Buphus coromandus, sexes and young of; change of colour in.
Burchell, Dr., on the zebra; on the extravagance of a Bushwoman in adorning herself; celibacy unknown among the savages of South Africa; on the marriage-customs of the Bushwomen.
Burke, on the number of species of man.
Burmese, colour of the beard in.
Burton, Captain, on negro ideas of female beauty; on a universal ideal of beauty.
Bushmen, marriage among.
Bushwoman, extravagant ornamentation of a.
Bushwomen, hair of; marriage-customs of.
Bustard, throat-pouch of the male; humming noise produced by a male; Indian, ear-tufts of.