Belt, Mr., on the nakedness of tropical mankind; on a spider-monkey and eagle; habits of ants; Lampridae distasteful to mammals; mimicry of Leptalides; colours of Nicaraguan frogs; display of humming-birds; on the toucans; protective colouring of skunk.
Benevolence, manifested by birds.
Bennett, A.W., attachment of mated birds; on the habits of Dromaeus irroratus.
Bennett, Dr., on birds of paradise.
Berbers, fertility of crosses with other races.
Bernicla antarctica, colours of.
Bernicle gander pairing with a Canada goose.
Bert, M., crustaceans distinguish colours.
Bettoni, E., on local differences in the nests of Italian birds.
Beyle, M., see Bombet.