Bernicla antarctica, i. 288.

Bertero, on feral pigeons in Juan Fernandez, i. 190.

Betula alba, ii. [18].

Bewick, on the British wild cattle, i. 84.

Bible, reference to breeding studs of horses in, i. 54;

references to domestic pigeons in the, i. 205;

indications of selection of sheep in the, ii. [201];

notice of mules in the, ii. [202].

Bidwell, Mr., on self-impotence in Amaryllis, ii. [139].

Birch, weeping, i. 387, ii. [18].