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Hormones and Heredity

By Cunningham, J. T.

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Book Id: WPLBN0000633637
Format Type: PDF eBook
File Size: 248.68 KB
Reproduction Date: 2005
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Title: Hormones and Heredity  
Author: Cunningham, J. T.
Language: English
Subject: Literature, Literature & thought, Writing.
Collections: Blackmask Online Collection
Publication Date:
Publisher: Blackmask Online


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Cunningham, J. (n.d.). Hormones and Heredity. Retrieved from

Preface: My chief object in writing this volume was to discuss the relations of modern discoveries concerning hormones or internal secretions to the question of the evolution of adaptations, and on the other hand to the results of recent investigations of Mendelian heredity and mutations. I have frequently found, from verbal or written references to my opinions, that the evidence on these questions and my own conclusions from that evidence were either imperfectly known or misunderstood. This is not surprising in view of the fact that hitherto my only publications on the hormone theory have been a paper in a German periodical and a chapter in an elementary text?book. The present publication is by no means a thorough or complete exposition of the subject, it is merely an attempt to state the fundamental facts and conclusions, the importance of which it seems to me are not generally appreciated by biologists.

Table of Contents
Table of Contents: Hormones and Heredity, 1 -- J. T. Cunningham, 1 -- Preface, 1 -- Introduction. Historical Survey Of Theories Or Suggestions Of Chemical Influence In -- Heredity, 2 -- Chapter I. Classification And Adaptation, 5 -- Chapter II. Mendelism And The Heredity Of Sex, 19 -- Chapter III. Influence Of Hormones On Development Of Somatic Sex?Characters, 28 -- Chapter IV. Origin Of Somatic Sex?Characters In Evolution, 42 -- Chapter V. Mammalian Sexual Characters. Evidence Opposed To The Hormone Theory, 52 -- Chapter VI. Origin Of Non?Sexual Characters: The Phenomena Of Mutation, 64 -- Chapter VII. Metamorphosis And Recapitulation, 74


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