WING-AND TAIL-FEATHERS, VOICE, DISPOSITION, ETC.--OSTEOLOGICAL DIFFERENCES
IN THE SKULL, VERTEBRAE, ETC.--EFFECTS OF USE AND DISUSE ON CERTAIN PARTS--
CORRELATION OF GROWTH.


CHAPTER 1.VIII.

DUCK--GOOSE--PEACOCK--TURKEY--GUINEA-FOWL--CANARY-BIRD--GOLD-FISH--HIVE-
BEES--SILK-MOTHS.

DUCKS, SEVERAL BREEDS OF--PROGRESS OF DOMESTICATION--ORIGIN OF FROM THE
COMMON WILD-DUCK--DIFFERENCES IN THE DIFFERENT BREEDS--OSTEOLOGICAL
DIFFERENCES--EFFECTS OF USE AND DISUSE ON THE LIMB-BONES.

GOOSE, ANCIENTLY DOMESTICATED--LITTLE VARIATION OF--SEBASTOPOL BREED.

PEACOCK, ORIGIN OF BLACK-SHOULDERED BREED.
TURKEY, BREEDS OF--CROSSED WITH THE UNITED STATES SPECIES--EFFECTS OF
CLIMATE ON.

GUINEA-FOWL, CANARY-BIRD, GOLD-FISH, HIVE-BEE.

SILK-MOTHS, SPECIES AND BREEDS OF--ANCIENTLY DOMESTICATED--CARE IN THEIR
SELECTION--DIFFERENCES IN THE DIFFERENT RACES--IN THE EGG, CATERPILLAR, AND
COCOON STATES--INHERITANCE OF CHARACTERS--IMPERFECT WINGS--LOST INSTINCTS--
CORRELATED CHARACTERS.


CHAPTER 1.IX.