Contents

pp vii-x

INTRODUCTION

pp xi-xxx

PART I

pp 1-21

PART II

pp 22-54

PART I

CHAPTER I - ON THE VARIATION OF ORGANIC BEINGS UNDER DOMESTICATION; AND ON THE PRINCIPLES OF SELECTION

pp 55-80

CHAPTER II - ON THE VARIATION OF ORGANIC BEINGS IN A WILD STATE; ON THE NATURAL MEANS OF SELECTION; AND ON THE COMPARISON OF DOMESTIC RACES AND TRUE SPECIES

pp 81-111

CHAPTER III - ON THE VARIATION OF INSTINCTS AND OTHER MENTAL ATTRIBUTES UNDER DOMESTICATION AND IN STATE OF NATURE; ON THE DIFFICULTIES IN THIS SUBJECT; AND ON ANALOGOUS DIFFICULTIES WITH RESPECT TO CORPOREAL STRUCTURES

pp 112-132

PART II - ON THE EVIDENCE FAVOURABLE AND OPPOSED TO THE VIEW THAT SPECIES ARE NATURALLY FORMED RACES, DESCENDED FROM COMMON STOCKS

CHAPTER IV - ON THE NUMBER OF INTERMEDIATE FORMS REQUIRED ON THE THEORY OF COMMON DESCENT; AND ON THEIR ABSENCE IN A FOSSIL STATE

pp 133-143

CHAPTER V - GRADUAL APPEARANCE AND DISAPPEARANCE OF SPECIES

pp 144-150

CHAPTER VI - ON THE GEOGRAPHICAL DISTRIBUTION OF ORGANIC BEINGS IN PAST AND PRESENT TIMES

pp 151-197

CHAPTER VII - ON THE NATURE OF THE AFFINITIES AND CLASSIFICATION OF ORGANIC BEINGS

pp 198-213

CHAPTER VIII - UNITY OF TYPE IN THE GREAT CLASSES; AND MORPHOLOGICAL STRUCTURES

pp 214-230

CHAPTER IX - ABORTIVE OR RUDIMENTARY ORGANS

pp 231-238

CHAPTER X - RECAPITULATION AND CONCLUSION

pp 239-256

INDEX

pp 257-263