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Table of Contents
- STUDIES IN THE THEORY OF DESCENT.
- PREFATORY NOTICE.
- TRANSLATOR’S PREFACE.
- PREFACE TO THE ENGLISH EDITION.
- CONTENTS.
- STUDIES IN THE THEORY OF DESCENT.
- Part I. ON THE SEASONAL DIMORPHISM OF BUTTERFLIES.
- I. The Origin and Significance of Seasonal Dimorphism.
- II. Seasonal Dimorphism and Climatic Variation.
- III. Nature of the Causes producing Climatic Varieties.
- IV. Why all Polygoneutic Species are not Seasonally Dimorphic.
- V. On Alternation of Generations.
- VI. General Conclusions.
- APPENDIX I. EXPERIMENTS.
- APPENDIX II.
- EXPLANATION OF THE PLATES.
- II. Seasonal Dimorphism and Climatic Variation.
- III. Nature of the Causes producing Climatic Varieties.
- IV. Why all Polygoneutic Species are not Seasonally Dimorphic.
- V. On Alternation of Generations.
- VI. General Conclusions.
- APPENDIX I. EXPERIMENTS.
- APPENDIX II.
- EXPLANATION OF THE PLATES.
- I. The Origin and Significance of Seasonal Dimorphism.
- STUDIES IN THE THEORY OF DESCENT.
- Part II. ON THE FINAL CAUSES OF TRANSFORMATION.
- I. THE ORIGIN OF THE MARKINGS OF CATERPILLARS.
- INTRODUCTION.
- I. Ontogeny and Morphology of Sphinx-Markings.
- II. Conclusions from Phylogeny.
- III. Biological Value of Marking in General.
- IV. Biological Value of Colour.
- V. Biological Value of Special Markings.
- VI. Objections to a Phyletic Vital Force.
- VII. Phyletic Development of the Markings of the Sphingidæ: Summary and Conclusion.
- INTRODUCTION.
- I. Ontogeny and Morphology of Sphinx-Markings.
- II. Conclusions from Phylogeny.
- III. Biological Value of Marking in General.
- IV. Biological Value of Colour.
- V. Biological Value of Special Markings.
- VI. Objections to a Phyletic Vital Force.
- VII. Phyletic Development of the Markings of the Sphingidæ: Summary and Conclusion.
- II. ON PHYLETIC PARALLELISM IN METAMORPHIC SPECIES.
- INTRODUCTION.
- INTRODUCTION.
- I. THE ORIGIN OF THE MARKINGS OF CATERPILLARS.
- STUDIES IN THE THEORY OF DESCENT
- I. Larva and Imago vary in Structure independently of each other.
- II. Does the Form-relationship of the Larva coincide with that of the Imago?
- III. Incongruences in other Orders of Insects.
- IV. Summary and Conclusion.
- APPENDIX I.
- APPENDIX II.
- EXPLANATION OF THE PLATES.
- II. Does the Form-relationship of the Larva coincide with that of the Imago?
- III. Incongruences in other Orders of Insects.
- IV. Summary and Conclusion.
- APPENDIX I.
- APPENDIX II.
- EXPLANATION OF THE PLATES.
- I. Larva and Imago vary in Structure independently of each other.
- STUDIES IN THE THEORY OF DESCENT.
- Part III. ON THE FINAL CAUSES OF TRANSFORMATION.
- III. THE TRANSFORMATION OF THE MEXICAN AXOLOTL INTO AMBLYSTOMA.
- INTRODUCTION.
- EXPERIMENTS.
- Postscript.
- Addendum.
- INTRODUCTION.
- EXPERIMENTS.
- Postscript.
- Addendum.
- IV. ON THE MECHANICAL CONCEPTION OF NATURE.
- INTRODUCTION.
- I. Are the Principles of the Selection Theory Mechanical?
- II. Mechanism and Teleology.
- INTRODUCTION.
- I. Are the Principles of the Selection Theory Mechanical?
- II. Mechanism and Teleology.
- III. THE TRANSFORMATION OF THE MEXICAN AXOLOTL INTO AMBLYSTOMA.
- FOOTNOTES
- INDEX.
- ERRATA.
- Transcriber’s Notes
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