官方藏书 / Science_-_Biology / Studies in the Theory of Descent, Volume I

Studies in the Theory of Descent, Volume I

August Weismann · Science_-_Biology · 31 章

目录

STUDIES IN THE THEORY OF DESCENT.PREFATORY NOTICE.TRANSLATOR’S PREFACE.PREFACE TO THE ENGLISH EDITION.CONTENTS.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.Chapter 15 EXPLANATION OF THE PLATES.Part II. ON THE FINAL CAUSES OF TRANSFORMATION.INTRODUCTION.I. Ontogeny and Morphology of Sphinx-Markings.Table of Development of the Species of Deilephila.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.FOOTNOTES Chapter 29 Chapter 30 THE FULL PROJECT GUTENBERG™ LICENSE