BECK, Mr., constitutional differences in pelargoniums.

BECKMANN, on changes in the odours of plants.

BEDDOE, Dr., correlation of complexion with consumption.

BEE, persistency of character of. -intercrossing. -conveyance of pollen of peas by.

BEE OPHRYS, self-fertilisation of.

BEECH, dark-leaved. -fern-leaved, reversion of. -weeping, non-production of, by seed.

BEECHEY, horses of Loochoo Islands.

BEET, increase of sugar in, by selection.

Begonia frigida, singular variety of. -sterility of.

BELGIAN rabbit.

BELL, T., statement that white cattle have coloured ears.

BELL, W., bud-variation in Paritium tricuspis.

BELLINGERI, observations on gestation in the dog. -on the fertility of dogs and cats.

BELON, on high-flying pigeons in Paphlagonia. -varieties of the goose.

BENGUELA, cattle of.

BENNETT, Dr. G., pigs of the Pacific Islands. -dogs of the Pacific Islands. -varieties of cultivated plants in Tahiti.

BENNETT, Mr., on the fallow deer.

BENTHAM, G., number and origin of cultivated plants. -on Phaseolus. -cereals all cultivated varieties. -species of the orange group. -distinctions of almond and peach. -British species of Rosa. -identity of Viola lutea and tricolor.

Berberis vulgaris.

Berberis wallichii, indifference of, to climate.

BERJEAU, on the history of the dog.

BERKELEY, G.F., production of hen-cocks in a strain of game-fowls.

BERKELEY, M.J., crossing of varieties of the pea. -effect of foreign pollen on grapes. -on hybrid plants. -analogy between pollen of highly-cultivated plants and hybrids. -on Hungarian kidney-beans. -failure of Indian wheat in England.

BERNARD, inheritance of disease in the horse.

BERNARD, C., independence of the organs of the body. -special affinities of the tissues.

BERNHARDI, varieties of plants with laciniated leaves.

Bernicla antarctica.

BERTERO, on feral pigeons in Juan Fernandez.

Betula alba.

BEWICK, on the British wild cattle.

BIANCONI, Prof., on the skulls of dogs.

BIBLE, reference to breeding studs of horses in. -references to domestic pigeons in the. -indications of selection of sheep in the. -notice of mules in the.

BIDWELL, Mr., on self-impotence in Amaryllis.

Bignonia, self-sterility of.

BIRCH, weeping.

BIRCH, Dr. S., on the ancient domestication of the pigeon in Egypt. -notice of bantam fowls in a Japanese encyclopaedia.

BIRCH, WYRLEY, on silver-grey rabbits.

BIRDS, sterility caused in, by change of conditions.

BLADDER-NUT, tendency of the, to become double.

BLAINE, Mr., on wry-legged terriers.

BLAINVILLE, origin and history of the dog. -variations in the number of teeth in dogs. -variations in the number of toes in dogs. -on mummies of cats. -on the osteology of solid-hoofed pigs. -on feral Patagonian and N. American pigs.

"BLASS-TAUBE."

BLEEDING, hereditary. -sexual limitation of excessive.

BLENDING of crossed races, time occupied by the.

BLINDNESS, hereditary. -at a certain age. -associated with colour of hair.

BLOODHOUNDS, degeneration of, caused by interbreeding.

BLUMENBACH, on the protuberance of the skull in Polish fowls. -on the effect of circumcision. -inheritance of a crooked finger. -on badger-dogs and other varieties of the dog. -on Hydra. -on the "nisus formativus."

BLYTH, E., on the pariah dog. -hybrids of dog and jackal. -early domestication of cats in India. -origin of domestic cat. -crossing of domestic and wild cats. -on Indian cats resembling Felis chaus. -on striped Burmese ponies. -on the stripes of the ass. -on Indian wild pigs. -on humped cattle. -occurrence of Bos frontosus in Irish crannoges. -fertile crossing of zebus and common cattle. -on the species of sheep. -on the fat-tailed Indian sheep. -origin of the goat. -on rabbits breeding in India. -number of tail-feathers in fantails. -Lotan tumbler pigeons. -number of tail-feathers in Ectopistes. -on Columba affinis. -pigeons roosting in trees. -on Columba leuconota. -on Columba intermedia of Strickland. -variation in colour of croup in pigeons. -voluntary domestication of rock-pigeons in India. -feral pigeons on the Hudson. -occurrence of sub-species of pigeons. -notice of pigeon-fanciers in Delhi, etc. -hybrids of Gallus sonneratii and the domestic hen. -supposed hybridity of Gallus temminckii. -variations and domestication of Gallus bankiva. -crossing of wild and tame fowls in Burmah. -restricted range of the larger gallinaceous birds. -feral fowls in the Nicobar Islands. -black-skinned fowls occurring near Calcutta. -weight of Gallus bankiva. -degeneration of the turkey in India. -on the colour of gold-fish. -reversion from a cross. -on the Ghor-Khur (Asinus indicus). -on Asinus hemionus. -number of eggs of Gallus bankiva. -on the breeding of birds in captivity. -co-existence of large and small breeds in the same country. -on the drooping ears of the elephant. -homology of leg and wing feathers.

Charles Darwin

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