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.

BECK, Mr., constitutional differences in pelargoniums.

BECKMANN, on changes in the odours of plants.