- 1Epigraph
- 2Preface
- 3Chapter I — From Known to Unknown
- 4Chapter II — Review of the Position
- 5Chapter III — The Problems Presented
- 6Chapter IV — Initial Variations and Total Experience
- 7Chapter V — Method of Proof
- 8Chapter VI — Evidence From Arrangement of Hair
- 9Chapter VII — The Evolution of Patterns of Hair
- 10Chapter VIII — Can Muscular Action Change the Direction of Hair in…
- 11Chapter IX — Habits and Hair of Ungulates
- 12Chapter X — Habits and Hair of Ungulates
- 13Chapter XI — Habits and Hair of Carnivores
- 14Chapter XII — Habits and Hair of Carnivores
- 15Chapter XIII — Habits and Hair of Primates
- 16Chapter XIV — Miscellaneous Examples
- 17Chapter XV — Experimental
- 18Chapter XVI — First Summary
- 19Chapter XVII — Varieties of Epidermis
- 20Chapter XVIII — Arrangement of the Papillary Ridges
- 21Chapter XIX — Flexures of the Palm and Sole
- 22Chapter XX — The Evolution of a Bursa
- 23Chapter XXI — The Plantar Arch
- 24Chapter XXII — Muscles
- 25Chapter XXIII — Innervation of the Human Skin
- 26Chapter XXIV — The Building of Reflex Arcs
- 27Summary
Initiative in Evolution
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