*

{iii}

CONTENTS OF VOLUME I.

INTRODUCTION ... Page 1

CHAPTER I.

DOMESTIC DOGS AND CATS.

ANCIENT VARIETIES OF THE DOG--RESEMBLANCE OF DOMESTIC DOGS IN VARIOUS
COUNTRIES TO NATIVE CANINE SPECIES--ANIMALS NOT ACQUAINTED WITH MAN AT
FIRST FEARLESS--DOGS RESEMBLING WOLVES AND JACKALS--HABIT OF BARKING
ACQUIRED AND LOST--FERAL DOGS--TAN-COLOURED EYE-SPOTS--PERIOD OF
GESTATION--OFFENSIVE ODOUR--FERTILITY OF THE RACES WHEN
CROSSED--DIFFERENCES IN THE SEVERAL RACES IN PART DUE TO DESCENT FROM
DISTINCT SPECIES--DIFFERENCES IN THE SKULL AND TEETH--DIFFERENCES IN THE
BODY, IN CONSTITUTION--FEW IMPORTANT DIFFERENCES HAVE BEEN FIXED BY
SELECTION--DIRECT ACTION OF CLIMATE--WATER-DOGS WITH PALMATED FEET--HISTORY
OF THE CHANGES WHICH CERTAIN ENGLISH RACES OF THE DOG HAVE GRADUALLY
UNDERGONE THROUGH SELECTION--EXTINCTION OF THE LESS IMPROVED SUB-BREEDS.

CATS, CROSSED WITH SEVERAL SPECIES--DIFFERENT BREEDS FOUND ONLY IN
SEPARATED COUNTRIES--DIRECT EFFECTS OF THE CONDITIONS OF LIFE--FERAL
CATS--INDIVIDUAL VARIABILITY ... Page 15

CHAPTER II.

HORSES AND ASSES.

HORSE.--DIFFERENCES IN THE BREEDS--INDIVIDUAL VARIABILITY OF--DIRECT
EFFECTS OF THE CONDITIONS OF LIFE--CAN WITHSTAND MUCH COLD--BREEDS MUCH
MODIFIED BY SELECTION--COLOURS OF THE HORSE--DAPPLING--DARK STRIPES ON THE
SPINE, LEGS, SHOULDERS, AND FOREHEAD--DUN-COLOURED HORSES MOST FREQUENTLY
STRIPED--STRIPES PROBABLY DUE TO REVERSION TO THE PRIMITIVE STATE OF THE
HORSE.

ASSES.--BREEDS OF--COLOUR OF--LEG- AND SHOULDER-STRIPES--SHOULDER-STRIPES
SOMETIMES ABSENT, SOMETIMES FORKED ... Page 49

CHAPTER III.

PIGS--CATTLE--SHEEP--GOATS.

PIGS BELONG TO TWO DISTINCT TYPES, SUS SCROFA AND
INDICA--TORF-SCHWEIN--JAPAN PIG--FERTILITY OF CROSSED PIGS--CHANGES IN THE
SKULL OF THE HIGHLY CULTIVATED RACES--CONVERGENCE OF
CHARACTER--GESTATION--SOLID-HOOFED SWINE--CURIOUS APPENDAGES TO THE
JAWS--DECREASE IN SIZE OF THE TUSKS--YOUNG PIGS LONGITUDINALLY
STRIPED--FERAL PIGS--CROSSED BREEDS.

CATTLE.--ZEBU A DISTINCT SPECIES--EUROPEAN CATTLE PROBABLY DESCENDED FROM
THREE WILD FORMS--ALL THE RACES NOW FERTILE TOGETHER--BRITISH PARK
CATTLE--ON THE COLOUR OF THE ABORIGINAL SPECIES--CONSTITUTIONAL
DIFFERENCES--SOUTH AFRICAN RACES--SOUTH AMERICAN RACES--NIATA
CATTLE--ORIGIN OF THE VARIOUS RACES OF CATTLE. {iv}

SHEEP.--REMARKABLE RACES OF--VARIATIONS ATTACHED TO THE MALE
SEX--ADAPTATIONS TO VARIOUS CONDITIONS--GESTATION OF--CHANGES IN THE
WOOL--SEMI-MONSTROUS BREEDS.

GO