PREFACE
INTRODUCTION
CHAPTER I VARIATION UNDER DOMESTICATION
CHAPTER II VARIATION UNDER NATURE
CHAPTER III STRUGGLE FOR EXISTENCE
CHAPTER IV NATURAL SELECTION;OR THE SURVIVAL OF THE FITTEST
CHAPTER V LAWS OF VARIATION
CHAPTER VI DIFFICULTIES OF THE THEORY
CHAFrER VIII INSTINCT
CHAPTER IX HYBRIDISM
CHAPTER X ON THE IMPERFECTION OF THE GEOLOGICAL RECORD
CHAPTER XI ON THE GEOLOGICAL
SUCCESSION OF ORGANIC BEINGS
CHAPTER XlI GEOGRAPHICAL DISTRIBUTION
CHAPTER XIII GEOGRAPHICAL DISTRIBUTION--CONTINUED
CHAPTER XIV MUTUAL AFFINITIES OF
ORGANIC BEINGS MORPHOLOGY
EMBRYOLOGY--RUDIMENTARY ORGANS
CHAPTER XV RECAPITULATION
AND CONCLUSION
APPENDIX: GLOSSARY OF THE
PRINCIPAL SCIENTIFIC TERMS USED
IN THE PRESENT VOLUME