fTlll CONTENTS. 



CHAPTER YIL 



FOWLS. 



BRIEF DESCRIPTIONS OF THE CHIEF BREEDS— ARGUMENTS IN FAVOUJ3 

 OF THEIR DESCENT FROM SEVERAL SPECIES — ARGUMENTS IN FAVOUR 

 OP AEL THE BREEDS HAVING DESCENDED FROM GALLUS BANKrVA 



— REVERSION TO THE PARENT-STOCK IN COLOUR ANALOGOUS 



VARIATIONS — ANCIENT HISTORY OF THE FOWL — EXTERNAL DIF- 

 FERENCES BETWEEN THE SEVERAL BREEDS — EGGS — CHICKENS — 

 SECONDARY SEXUAL CHARACTERS — WING- AND TAIL- FEATHERS, 

 VOICE, DISPOSITION, ETC. — OSTEOLOGICAL DIFFERENCES IN THE 



SKULL, VERTEBRA, ETC. EFFECTS OF USE AND DISUSE ON CERTAIN 



PARTS — CORRELATION OF GROWTH Pa2.eS 236-289 



CHAPTEK YIII. 



DUCK — GOOSE— PEACOCK TURKEY — GUINEA-FOWL — 



CANARY-BIRD — GOLD-FISH — HIYE-BEES — SILK-MOTHS. 



DUCKS, SEVERAL BREEDS OF — PROGRESS OF DOMESTICATION — ORIGIN 

 OF FROM THE COMMON WILD-DUCK — DIFFERENCES IN THE DIF- 

 FERENT BREEDS— OSTEOLOGICAL DIFFERENCES— EFFECTS OF USE 

 AND DISUSE ON THE LIMB-BONES. 



GOOSE, ANCIENTLY DOMESTICATED — LITTLE VARIATION OF — SEBAS- 

 TOPOL BREED. 



PEACOCK, ORIGIN OF BLACK-SHOULDERED BREED. 



TURKEY, BREEDS OF — CROSSED WITH THE UNITED STATES SPECIES 

 — EFFECTS OF CLIMATE ON. 



GUINEA-FOWL, CAXARY-B1ED, GOLD-FISH, HIYE-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 — INHERIT- 

 ANCE OF CHARACTERS — IMPERFECT WINGS —LOST INSTINCTS — CORRE- 

 LATED CHARACTERS 200-321 



