ORFORD, Lord, crossing greyhounds with the bulldog.
ORGANISMS, origin of.
ORGANISATION, advancement in.
ORGANS, rudimentary and aborted. -multiplication of abnormal.
ORIOLE, assumptions of hen-plumage by a male in confinement.
ORKNEY Islands, pigs of. -pigeons of.
ORTHOPTERA, regeneration of hind legs in the.
Orthosia munda.
ORTON, R., on the effects of cross-breeding on the female. -on the Manx cat. -on mongrels from the silk fowl. -infertility of geese in Quito.
OSBORNE, Dr., inherited mottling of the iris.