OSPREY, preying on black fowls.
OSTEN-SACKEN, Baron, on American oak-galls.
OSTEOLOGICAL characters of pigs. -of rabbits. -of pigeons. -of ducks.
OSTRICH, diminished fertility of the, in captivity.
OSTYAKS, selection of dogs by the.
OTTER.
"OTTER" sheep of Massachusetts.
OUDE, feral humped cattle in.
OUISTITI, breed in Europe.
OVARY, variation of, in Cucurbita moschata. -development of, independently of pollen.