The Descent of Man, and Selection in Relation to Sex

affecting speech; difference in the convolutions of, in different races of men; supplement on, by Prof. Huxley; development of the gyri and sulci. Brakenridge, Dr., on the influence of climate. Brandt, A., on hairy men. Braubach, Prof., on the quasi-religious feeling of a dog towards his master; on the self-restraint of dogs. Brauer, F., on dimorphism in Neurothemis. Brazil, skulls found in caves of; population of; compression of the nose by the natives of. Break between man and the apes. Bream, proportion of the sexes in the. Breeding, age of, in birds. Breeding season, sexual characters making their appearance in the, in birds. Brehm, on the effects of intoxicating liquors on monkeys; on the recognition of women by male Cynocephali; on the diversity of the mental faculties of monkeys; on the habits of baboons; on revenge taken by monkeys; on manifestations of maternal affection by monkeys and baboons; on the instinctive dread of monkeys for serpents; on the use of stones as missiles by baboons; on a baboon using a mat for shelter from the sun; on the signal-cries of monkeys; on sentinels posted by monkeys; on co-operation of animals; on an eagle attacking a young Cercopithecus; on baboons in confinement protecting one of their number from punishment; on the habits of baboons when plundering; on polygamy in Cynocephalus and Cebus; on the numerical proportion of the sexes in birds; on the love-dance of the blackcock; Palamedea cornuta; on the habits of the Black-grouse; on sounds produced by birds of paradise; on assemblages of grouse; on the finding of new mates by birds; on the fighting of wild boars; on sexual differences in Mycetes; on the habits of Cynocephalus hamadryas. 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. Bustards, occurrence of sexual differences and of polygamy among the; love-gestures of the male; double moult in. 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. Californian Indians, decrease of. Callianassa, chelae of, figured. Callidryas, colours of sexes. Callionymus lyra, characters of the male. Callorhinus ursinus, relative size of the sexes of; courtship of. Calotes maria. Calotes nigrilabris, sexual difference in the colour of. Cambridge, O. Pickard, on the sexes of spiders; on the size of male Nephila. Camel, canine teeth of male. Campbell, J., on the Indian elephant; on the proportion of male and female births in the harems of Siam. Campylopterus hemileucurus. Canaries distinguishing persons. Canary, polygamy of the; change of plumage in, after moulting; female, selecting the best singing male; sterile hybrid, singing of a; female, singing of the; selecting a greenfinch; and siskin, pairing of. Cancer pagurus. Canestrini, G., on rudimentary characters and the origin of man; on rudimentary characters; on the movement of the ear in man; of the variability of the vermiform appendage in man; on the abnormal division of the malar bone in man; on abnormal conditions of the human uterus; on the persistence of the frontal suture in man; on the proportion of the sexes in silk-moths; secondary sexual characters of spiders. Canfield, Dr., on the horns of the Antilocapra. Canine teeth in man, diminution of, in man; diminution of, in horses; disappearance of, in male ruminants; large in the early progenitors of man. Canines, and horns, inverse development of. Canoes, use of. Cantharis, difference of colour in the sexes of a species of. Cantharus lineatus. Capercailzie, polygamous; proportion of the sexes in the; pugnacity of the male; pairing of the; autumn meetings of the; call of the; duration of the courtship of; behaviour of the female; inconvenience of black colour to the female; sexual difference in the coloration of the; crimson eye-cere of the male. Capitonidae, colours and nidification of the. Capra aegagrus, crest of the male; sexual difference in the colour of. Capreolus Sibiricus subecaudatus. Caprice, common to man and animals. Caprimulgus, noise made by the males of some species of, with their wings. Caprimulgus virginianus, pairing of. Carabidae. Carbonnier, on the natural history of the pike; on the relative size of the sexes in fishes; courtship of Chinese Macropus. Carcineutes, sexual difference of colour in. Carcinus moenas. Cardinalis virginianus. Carduelis elegans, sexual differences of the beak in. Carnivora, marine, polygamous habits of; sexual differences in the colours of. Carp, numerical proportion of the sexes in the. Carr, R., on the peewit. Carrier pigeon, late development of the wattle in the. Carrion beetles, stridulation of. Carrion-hawk, bright coloured female of. Carus, Prof. V., on the development of the horns in merino sheep; on antlers of red deer. Cassowary, sexes and incubation of the. Castnia, mode of holding wings. Castoreum. Castration, effects of. Casuarius galeatus. Cat, convoluted body in the extremity of the tail of a; sick, sympathy of a dog with a. Cataract in Cebus Azarae. Catarrh, liability of Cebus Azarae to. Catarrhine monkeys. Caterpillars, bright colours of. Cathartes aura. Cathartes jota, love-gestures of the male. Catlin, G., correlation of colour and texture of hair in the Mandans; on the development of the beard among the North American Indians; on the great length of the hair in some North American tribes. Caton, J.D., on the development of the horns in Cervus virginianus and strongyloceros; on the wild turkey; on the presence of traces of horns in the female wapiti; on the fighting of deer; on the crest of the male wapiti; on the colours of the Virginian deer; on sexual differences of colour in the wapiti; on the spots of the Virginian deer. Cats, dreaming; tortoise-shell; enticed by valerian; colours of. Cattle, rapid increase of, in South America; domestic, lighter in winter in Siberia; horns of; domestic, sexual differences of, late developed; numerical proportion of the sexes in. Caudal vertebrae, number of, in macaques and baboons; basal, of monkeys, imbedded in the body. Cavolini, observations on Serranus. Cebus, maternal affection in a; gradation of species of. Cebus Apella. Cebus Azarae, liability of, to the same diseases as man; distinct sounds produced by; early maturity of the female. Cebus capucinus, polygamous; sexual differences of colour in; hair on the head of. Cebus vellerosus, hair on the head of. Cecidomyiidae, proportions of the sexes in. Celibacy, unknown among the savages of South Africa and South America. Centipedes. Cephalopoda, absence of secondary sexual characters in. Cephalopterus ornatus. Cephalopterus penduliger. Cerambyx heros, stridulant organ of. Ceratodus, paddle of. Ceratophora aspera, nasal appendages of. Ceratophora Stoddartii, nasal horn of. Cerceris, habits of. Cercocebus aethiops, whiskers, etc., of. Cercopithecus, young, seized by an eagle and rescued by the troop; definition of species of. Cercopithecus cephus, sexual difference of colour in. Cercopithecus cynosurus and griseo-viridis, colour of the scrotum in. Cercopithecus Diana, sexual differences of colour in. Cercopithecus griseo-viridis. Cercopithecus petaurista, whiskers, etc., of. Ceres, of birds, bright colours of. Ceriornis Temminckii, swelling of the wattles of the male during courtship. Cervulus, weapons of. Cervulus moschatus, rudimentary horns of the female. Cervus alces. Cervus campestris, odour of. Cervus canadensis, traces of horns in the female; attacking a man; sexual difference in the colour of. Cervus elaphus, battles of male; horns of, with numerous points; long hairs on the throat of. Cervus Eldi. Cervus mantchuricus. Cervus paludosus, colours of. Cervus strongyloceros. Cervus virginianus, horns of, in course of modification. Ceryle, male black-belted in some species of. Cetacea, nakedness of. Ceylon, frequent absence of beard in the natives of. Chaffinch, proportion of the sexes in the; courtship of the. Chaffinches, new mates