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1-17章
共17章
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INTRODUCTION
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CHAPTER I VARIATION UNDER DOMESTICATION
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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
CHAPTER VII MISCELLANEOUS OBJECTIONS TO THE THEORY OF NATURA
CHAPTER VIII INSTINCT
CHAPTER IX HYBRIDISM
CHAPTER X ON THE IMPERFECTION OF THE GEOLOGICAL RECORD
CHAPTER XI ON THE GEOLOGICAL SUCCESSION OF ORGANIC BEINGS
CHAPTER XII GEOGRAPHICAL DISTRIBUTION
CHAPTER XIII GEOGRAPHICAL DISTRIBUTION —continued
CHAPTER XIV MUTUAL AFFINITIES OF ORGANIC BEINGS: MORPHOLOGY—
CHAPTER XV RECAPITULATION AND CONCLUSION
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