CONTENTS
John Berry Haycraft
CHAPTER I.
INTRODUCTORY.
PAGE
Muscle and Brain versus Political Organisation
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The Muscles and Brains of a Race are not bound to decay
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The Fall of Greek and Roman Political Organisation
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The Permanence of the Scandinavian and Jewish Types
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Possible Racial Degeneration in Spain
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Our Power to ensure our own Racial Progress
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The Knowledge we possess regarding the Laws of Racial Change
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Evolution
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Modern Philanthropic Effort
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Are these conducive to Racial as well as to Individual Well-being?
1–18
CHAPTER II.
THE STANDPOINT OF BIOLOGISTS.
Lamarck’s View on Heredity
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Darwin’s Law of Selection
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Three Ideas involved in Selection
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Selection is a Fact, not a Theory
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How much is explainable by Selection?
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Galton and Weismann
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Are Acquired Characters Transmitted?
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Many Cases of Supposed Transmission to be explained by Selection
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Paucity of Experimental Evidence of such Transmission
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The Reproductive and the Body Cells
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Reproductive Cells unaffected by Local Changes in the Body Cells
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Constitutional Change may, though it rarely does, affect the Reproductive Cell
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The Facts of Evolutive Selection known to the Gardener and Breeder
19–43
CHAPTER III.
CAUSES AND SIGNS OF PHYSICAL DETERIORATION.
Modern Care for the Individual
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Preventive Medicine
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Micro-organisms of Diseases and their Extermination
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The Reproductive Cells as a Rule unaffected by them
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Man has been selected by the Action of the Microbes of Fever
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Leprosy an Exterminator of the Unhealthy
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Germs of Phthisis and Scrofula, our Racial Friends
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If we stamp out Infectious Diseases we perpetuate Poor Types
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Births, Deaths, and Marriages
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Increase of Constitutional Weakness
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Death-rate for Advanced Years on the Increase
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Life Tables compared
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Physical Degeneration of the Race already indicated
44–68
CHAPTER IV.
INSANITY AND ALCOHOLISM.
Nerve Derangements, Insanity
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The Importance of preventing its Transmission
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Marriages of Insane Persons
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Alcoholism a Habit, and Alcoholism a Sign of Mental Instability
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Drink is a Selective Agency
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Parents who drink from Habit may have Debilitated Offspring
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Preventive Measures
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DARWINISM AND RACE PROGRESS.
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