BREE, W.T., bud-variation in Geranium pratense and Centaurea cyanus. -by tubers in the dahlia. -on the deafness of white cats with blue eyes.

BREEDING, high, dependent on inheritance.

BREEDS, domestic, persistency of. -artificial and natural. -extinction of. -of domestic cats. -of pigs produced by crossing. -of cattle. -of goats.

BREHM, on Columba amaliae.

BRENT, B.P., number of mammae in rabbits. -habits of the tumbler pigeon. -Laugher pigeon. -colouring of the kite tumbler. -crossing of the pigeon with Columba oenas. -mongrels of the trumpeter pigeon. -close interbreeding of pigeons. -opinion on Aldrovandi's fowls. -on stripes in chickens. -on the combs of fowls. -double-spurred Dorking fowls. -effect of crossing on colour of plumage in fowls. -incubatory instinct of mongrels between non-setting varieties of fowls. -origin of the domestic duck. -fertility of the hook-billed duck. -occurrence of the plumage of the wild duck in domestic breeds. -voice of ducks. -occurrence of a short upper mandible in crosses of hook-billed and common ducks. -reversion in ducks produced by crossing. -variation of the canary-bird. -fashion in the canary. -hybrids of canary and finches.

BRICKELL, on raising nectarines from seed. -on the horses of North Carolina.

BRIDGES, Mr., on the dogs of Tierra del Fuego. -on the selection of dogs by the Fuegians.

BRIDGMAN, W.K., reproduction of abnormal ferns.

BROCA, P., on the intercrossing of dogs. -on hybrids of hare and rabbit. -on the rumpless fowl. -on the character of half-castes. -degree of fertility of mongrels. -sterility of descendants of wild animals bred in captivity.

BROCCOLI, -rudimentary flowers in. -tenderness of.