BABINGTON, C.C., on the origin of the plum. -British species of the genus Rosa. -distinctness of Viola lutea and tricolor.

BACHMANN, Mr., on the turkey. See also Audubon.

BADGER, breeding in confinement.

"BAGADOTTEN-TAUBE."

BAILY, Mr., on the effect of selection on fowls. -on Dorking fowls.

BAIRD, S., on the origin of the turkey.

BAKER, Mr., on heredity in the horse. -on the degeneration of the horse by neglect. -orders of Henrys VII. and VIII. for the destruction of undersized mares.

BAKEWELL, change in the sheep effected by.

BALANCEMENT. -of growth, -law of.

BALDHEAD (pigeon).

BALDNESS, in man, inherited. -with deficiency in teeth.

BALLANCE, Mr., on the effects of interbreeding on fowls. -on variation in the eggs of fowls.

Ballota nigra, transmission of variegated leaves in.

BAMBOO, varieties of the.

BANANA, variation of the. -bud-variation in the. -sterility of the.

BANTAM fowls, Sebright, origin of. -sterility of.

BARB (pigeon). -figure of. -figure of lower jaw of.

BARBS, of wheat.

BARBERRY, dark or red-leaved variety. -reversion in suckers of seedless variety.

BARBUT, J., on the dogs of Guinea. -on the domestic pigeons in Guinea. -fowls not native in Guinea.

BARKING, acquisition of the habit of, by various dogs.

BARLEY, wild. -of the lake-dwellings. -ancient variety of.

BARNES, Mr., production of early peas by selection.

BARNET, Mr., on the intercrossing of strawberries. -dioeciousness of the hautbois strawberry. -on the Scarlet American strawberry.

BARTH, Dr., use of grass-seeds as food in Central Africa.

BARTLETT, A.D., on the origin of "Himalayan" rabbits by intercrossing. -on the feral rabbits of Porto Santo. -on geese with reversed feathers on the head and neck. -on the young of the black-shouldered peacock. -on a variety of the turkey. -size of hybrids. -on the breeding of the Felidae in captivity. -so-called hybrids.

BARTRAM, on the black wolf-dog of Florida.

BATES, H.W., refusal of wild animals to breed in captivity. -sterility of American monkeys in captivity. -sterility of tamed guans.

BATRACHIA, regeneration of lost parts in.

BEACH, raised, in Peru, containing heads of maize.

BEAK, variability of, in fowls. -individual differences of, in pigeons, -correlation of, with the feet in pigeons.

BEALE, Lionel, on the contents of cells, -on the multiplication of infectious atoms.

BEANS, of Swiss lake-dwellings. -varieties of, produced by selection. -French and scarlet, variable resistance of, to frost. -superiority of native seed of. -a symmetrical variation of scarlet. -experiments on kidney. -with monstrous stipules and abortive leaflets.

BEARD pigeon.

BEARS, breeding in captivity.

BEASLEY, J., reversion in crossed cattle.

BEATON, D., effect of soil upon strawberries. -on varieties of pelargonium. -bud-variation in Gladiolus colvilii. -cross between Scotch kail and cabbage. -hybrid gladiolus. -constant occurrence of new forms among seedlings. -on the doubling of the Compositae.

BECHUANA cattle.

BECHSTEIN, on the burrowing of wolves. -Spitz Dog. -origin of the Newfoundland dog. -crossing of domestic and wild swine. -on the Jacobin pigeon. -notice of swallow-pigeons. -on a fork-tailed pigeon. -variations in the colour of the croup in pigeons. -on the German dovecote pigeon. -fertility of mongrel-pigeons. -on hybrid turtle-doves. -on crossing the pigeon with Columba oenas, C. palumbus, Turtur risoria, and T. vulgaris. -development of spurs in the silk hen. -on Polish fowls. -on crested birds. -on the canary-bird. -German superstition about the turkey. -occurrence of horns in hornless breeds of sheep. -hybrids of the horse and ass. -crosses of tailless fowls. -difficulty of pairing dovecote and fancy pigeons. -fertility of tame ferrets and rabbits. -fertility of wild sow. -difficulty of breeding caged birds. -comparative fertility of Psittacus erithacus in captivity. -on changes of plumage in captivity, -liability of light-coloured cattle to the attacks of flies. -want of exercise a cause of variability. -effect of privation of light upon the plumage of birds. -on a sub-variety of the monk-pigeon.

Charles Darwin

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