CHAPTER I.—DOMESTIC DOGS AND CATS.
ANCIENT VARIETIES OF THE DOG—RESEMBLANCE OF DOMESTIC DOGS IN VARIOUSCOUNTRIES TO NATIVE CANINE SPECIES—ANIMALS NOT ACQUAINTED WITH MAN ATFIRST FEARLESS—DOGS RESEMBLING WOLVES AND JACKALS—HABIT OF BARKINGACQUIRED AND LOST—FERAL DOGS—TAN-COLOURED EYE-SPOTS—PERIOD OFGESTATION—OFFENSIVE ODOUR—FERTILITY OF THE RACES WHENCROSSED—DIFFERENCES IN THE SEVERAL RACES IN PART DUE TO DESCENT FROMDISTINCT SPECIES—DIFFERENCES IN THE SKULL AND TEETH—DIFFERENCES INTHE BODY, IN CONSTITUTION—FEW IMPORTANT DIFFERENCES HAVE BEEN FIXED BYSELECTION—DIRECT ACTION OF CLIMATE—WATER-DOGS WITH PALMATEDFEET—HISTORY OF THE CHANGES WHICH CERTAIN ENGLISH RACES OF THE DOG HAVEGRADUALLY UNDERGONE THROUGH SELECTION—EXTINCTION OF THE LESS IMPROVEDSUB-BREEDS.
CATS, CROSSED WITH SEVERAL SPECIES—DIFFERENT BREEDS FOUND ONLY INSEPARATED COUNTRIES—DIRECT EFFECTS OF THE CONDITIONS OF LIFE—FERALCATS—INDIVIDUAL VARIABILITY.
HORSE. DIFFERENCES IN THE BREEDS—INDIVIDUAL VARIABILITYOF—DIRECT EFFECTS OF THE CONDITIONS OF LIFE—CAN WITHSTAND MUCHCOLD—BREEDS MUCH MODIFIED BY SELECTION—COLOURS OF THEHORSE—DAPPLING—DARK STRIPES ON THE SPINE, LEGS, SHOULDERS, ANDFOREHEAD—DUN-COLOURED HORSES MOST FREQUENTLY STRIPED—STRIPESPROBABLY DUE TO REVERSION TO THE PRIMITIVE STATE OF THE HORSE.
ASSES. BREEDS OF—COLOUR OF—LEG- ANDSHOULDER-STRIPES—SHOULDER-STRIPES SOMETIMES ABSENT, SOMETIMES FORKED.
CHAPTER III.—PIGS—CATTLE—SHEEP—GOATS.
PIGS BELONG TO TWO DISTINCT TYPES, SUS SCROFA ANDINDICUS—TORFSCHWEIN—JAPAN PIGS—FERTILITY OF CROSSEDPIGS—CHANGES IN THE SKULL OF THE HIGHLY CULTIVATEDRACES—CONVERGENCE OF CHARACTER—GESTATION—SOLID-HOOFEDSWINE—CURIOUS APPENDAGES TO THE JAWS—DECREASE IN SIZE OF THETUSKS—YOUNG PIGS LONGITUDINALLY STRIPED—FERAL PIGS—CROSSEDBREEDS.
CATTLE—ZEBU A DISTINCT SPECIES—EUROPEAN CATTLE PROBABLYDESCENDED FROM THREE WILD FORMS—ALL THE RACES NOW FERTILETOGETHER—BRITISH PARK CATTLE—ON THE COLOUR OF THE ABORIGINALSPECIES—CONSTITUTIONAL DIFFERENCES—SOUTH AFRICAN RACES—SOUTHAMERICAN RACES—NIATA CATTLE—ORIGIN OF THE VARIOUS RACES OF CATTLE.
SHEEP —REMARKABLE RACES OF—VARIATIONS ATTACHED TO THE MALESEX—ADAPTATIONS TO VARIOUS CONDITIONS—GESTATION OF—CHANGES INTHE WOOL—SEMI-MONSTROUS BREEDS.
GOATS —REMARKABLE VARIATIONS OF.
DOMESTIC RABBITS DESCENDED FROM THE COMMON WILD RABBIT—ANCIENTDOMESTICATION—ANCIENT SELECTION—LARGE LOP-EAREDRABBITS—VARIOUS BREEDS—FLUCTUATING CHARACTERS—ORIGIN OF THEHIMALAYAN BREED—CURIOUS CASE OF INHERITANCE—FERAL RABBITS INJAMAICA AND THE FALKLAND ISLANDS—PORTO SANTO FERALRABBITS—OSTEOLOGICAL CHARACTERS—SKULL—SKULL OF HALF-LOPRABBITS—VARIATIONS IN THE SKULL ANALOGOUS TO DIFFERENCES IN DIFFERENTSPECIES OF HARES—VERtebræ—STERNUM—SCAPULA—EFFECTS OFUSE AND DISUSE ON THE PROPORTIONS OF THE LIMBS AND BODY—CAPACITY OF THESKULL AND REDUCED SIZE OF THE BRAIN—SUMMARY ON THE MODIFICATIONS OFDOMESTICATED RABBITS.