On the Variation of Species, with Especial Reference to the Insecta ; Followed by an Inquiry into the Nature of Genera
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English
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ON THE VARIATION OF SPECIES WITH ESPECIAL REFERENCE TO THE INSECTA; FOLLOWED BY AN INQUIRY INTO THE NATURE OF GENERA.
PREFACE.
CONTENTS.
CORRIGENDUM.
CHAPTER I. INTRODUCTORY REMARKS.
CHAPTER II. FACT OF VARIATION.
FOOTNOTES:
CHAPTER III. CAUSES OF VARIATION.
§ I. Climatal causes generally, whether dependent on latitude or altitude.
§ II. Temporary heat or cold, of an unusual degree.
§ III. Nature of the country and of the soil.
§ IV. Isolation; and exposure to a stormy atmosphere.
FOOTNOTES:
CHAPTER IV. ORGANS AND CHARACTERS OF VARIATION.
FOOTNOTES:
CHAPTER V. GEOLOGICAL REFLECTIONS.
FOOTNOTES:
CHAPTER VI. THE GENERIC THEORY.
FOOTNOTES:
CHAPTER VII. CONCLUSION
INDEX.
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