Studies in the Theory Of Descent, Volume I (of 2)

About this eBook

Author

Weismann, August, 1834-1914

Title

Studies in the Theory of Descent, Volume I

Credits

Produced by Marilynda Fraser-Cunliffe, Charlie Howard, and the Online Distributed Proofreading Team at www.pgdp.net (This file was produced from images generously made available by The Internet Archive)

Language

English

LoC Class

QL: Science: Zoology

Subject

Mechanism (Philosophy)

Category

Text

eBook-No.

47847

Project Gutenberg

https://www.gutenberg.org/ebooks/47847

Release Date

January 2, 2015

Copyright

Public domain in the USA.

Contents

1. 1.STUDIES IN THE THEORY OF DESCENT.
2. 2.PREFATORY NOTICE.
3. 3.TRANSLATOR’S PREFACE.
4. 4.PREFACE TO THE ENGLISH EDITION.
5. 5.CONTENTS.
6. 6.STUDIES IN THE THEORY OF DESCENT.
7. 7.Part I. ON THE SEASONAL DIMORPHISM OF BUTTERFLIES.
8. 8.I. The Origin and Significance of Seasonal Dimorphism.
9. 9.II. Seasonal Dimorphism and Climatic Variation.
10. 10.III. Nature of the Causes producing Climatic Varieties.
11. 11.IV. Why all Polygoneutic Species are not Seasonally Dimorphic.
12. 12.V. On Alternation of Generations.
13. 13.VI. General Conclusions.
14. 14.APPENDIX I. EXPERIMENTS.
15. 15.APPENDIX II.
16. 16.EXPLANATION OF THE PLATES.
17. 17.STUDIES IN THE THEORY OF DESCENT.
18. 18.Part II. ON THE FINAL CAUSES OF TRANSFORMATION.
19. 19.I. THE ORIGIN OF THE MARKINGS OF CATERPILLARS.
20. 20.INTRODUCTION.
21. 21.I. Ontogeny and Morphology of Sphinx-Markings.
22. 22.II. Conclusions from Phylogeny.
23. 23.III. Biological Value of Marking in General.
24. 24.IV. Biological Value of Colour.
25. 25.V. Biological Value of Special Markings.
26. 26.VI. Objections to a Phyletic Vital Force.
27. 27.VII. Phyletic Development of the Markings of the Sphingidæ: Summary and Conclusion.
28. 28.INTRODUCTION.
29. 29.FOOTNOTES
30. 30.Transcriber’s Notes

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