The genetic and operative evidence relating to secondary sexual characterisitcs
by Thomas Hunt Morgan
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Language: English
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About this eBook
- Author
- Morgan, Thomas Hunt, 1866-1945
- Title
- The genetic and the operative evidence relating to secondary sexual characters
- Credits
- Produced by Larry B. Harrison, Bryan Ness, Chuck Greif and the Online Distributed Proofreading Team at www.pgdp.net (This file was produced from images generously made available by The Internet Archive/American Libraries.)
- Language
- English
- LoC Class
- QH: Science: Natural history
- Subject
- Genetics
- Category
- Text
- Project Gutenberg
- eBook-No. 57460
- Release Date
- July 7, 2018
- Copyright
- Public domain in the USA.
Contents
- 1.THE GENETIC AND THE OPERATIVE EVIDENCE RELATING TO SECONDARY SEXUAL CHARACTERS — CONTENTS. — THE GENETIC AND THE OPERATIVE EVIDENCE RELATING TO SECONDARY SEXUAL CHARACTERS.
- 2.PART I. — CASTRATION OF SEBRIGHTS. — A MALE SEBRIGHT THAT DID NOT BECOME COCK-FEATHERED AFTER CASTRATION. — TRANSITIONAL FEATHERS. — CASTRATION OF F₁ HEN-FEATHERED MALES FROM SEBRIGHT BY GAME. — CASTRATION OF F₂ HEN-FEATHERED MALES. — HEWITT’S SEBRIGHT HEN THAT BECAME COCK-FEATHERED IN OLD AGE. — HEREDITY OF HEN-FEATHERING. — HEREDITY OF COLOR IN THE CROSS BETWEEN SEBRIGHT AND BLACK-BREASTED GAME BANTAM. — A. The F₁ Birds. — B. Description of F₂ Birds. — D. The Number of Color Factors Involved. — E. Back-Cross of F₁ ♀ to Sebright ♂. — F. Review of the Heredity of the Color of the Plumage of Poultry. — ENDOCRINE CELLS IN OVARY AND TESTES OF BIRDS. — LUTEAL-CELLS IN THE TESTES OF THE MALE SEBRIGHT. — ENDOCRINE CELLS IN THE TESTES OF MAMMALS. — CYCLICAL CHANGES IN THE INTERSTITIAL CELLS IN HIBERNATING MAMMALS. — HERMAPHRODITISM IN POULTRY AND THE SECONDARY SEXUAL CHARACTERS.
- 3.PART II. — DARWIN’S THEORY OF SEXUAL SELECTION. — OTHER THEORIES TO ACCOUNT FOR SECONDARY SEXUAL CHARACTERS. — DISPLAY OF THE MALE.
- 4.PART III. THE GENETIC AND THE OPERATIVE EVIDENCE. — A. Evidence from Mammals. — B. Evidence from Birds. — C. Evidence from Amphibia. — D. Evidence from Crustaceans. — E. Evidence from Insects.
- 5.PART IV. SUMMARY AND CONCLUSIONS.
- 6.BIBLIOGRAPHY.
- 7.DESCRIPTION OF PLATES.
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