| PAGE | |
| Editor’s Dedication | v |
| Editor’s Preface | vii |
| Author’s Dedication | ix |
| Author’s Preface | xi |
| Contents | xiii |
| Introduction | 1 |
| CHAPTER I. | |
| The Human Kingdom | 10 |
| CHAPTER II. | |
| Comparative Psychology | 24 |
| CHAPTER III. | |
| The Order of Bimana | 38 |
| CHAPTER IV. | |
| Anatomical, Physiological, and Pathological Varieties | 43 |
| CHAPTER V. | |
| Intellectual and Philological Varieties | 62 |
| CHAPTER VI. | |
| The Influence of Climate | 80 |
| CHAPTER VII. | |
| The Influence of Hybridity | 95 |
| CHAPTER VIII. | |
| Species | 108 |
| CHAPTER IX. | |
| System | 134 |
| Index of Subjects | 153 |
| Index of Authors | 156 |