導讀 INTRODUCTION CHAPTER I VARIATION UNDER DOMESTICATION CHAPTER II VARIATION UNDER NATURE CHAPTER III STRUGGLE FOR EXISTENCE CHAPTER IV NATURAL SELECTION CHAPTER V LAWS OF VARIATION CHAPTER VI DIFFICULTIES ON THEORY CHAPTER VII INSTINCT CHAPTER VIII HYBRIDISM CHAPTER IX ON THE IMPERFECTION OF THE GEOLOGICAL RECORD CHAPTER X ON THE GEOLOGICAL SUCCESSION OF ORGANIC BEINGS CHAPTER XI GEOGRAPHICAL DISTRIBUTION CHAPTER XII GEOGRAPHICAL DISTRIBUTION -- CONTINUED CHAPTER XIII MUTUAL AFFINITIES OF ORGANIC BEINGS: MORPHOLOGY, EMBRYOLOGY, RUDIMENTARY ORGANS CHAPTER XIV RECAPITULATION AND CONCLUSION 術語彙編與簡釋