Buckland, W., on the complexity of crinoids.
Buckler, W., proportion of sexes of Lepidoptera reared by.
Bucorax abyssinicus, inflation of the neck-wattle of the male during courtship.
Budytes Raii.
Buffalo, Cape.
Buffalo, Indian, horns of the.
Buffalo, Italian, mode of fighting of the.
Buffon, on the number of species of man.
Bufo sikimmensis.
Bugs.