| CHAPTER I. |
| | PAGE |
| Introductory, | [1] |
| CHAPTER II. |
| Air Currents and the Flight of Birds, | [11] |
| CHAPTER III. |
| Flying of Kites, | [25] |
| CHAPTER IV. |
| Principally Relating to Screws, | [31] |
| CHAPTER V. |
| Experiments with Apparatus Attached to a Rotating Arm—Crystal Palace Experiments, | [62] |
| CHAPTER VI. |
| Hints as to the Building of Flying Machines—Steering by Means of a Gyroscope, | [77] |
| CHAPTER VII. |
| The Shape and Efficiency of Aeroplanes—The Action of Aeroplanes and the Power Required Expressed in the Simplest Terms—Some Recent Machines, | [99] |
| CHAPTER VIII. |
| Balloons, | [120] |
| Appendix I., | [125] |
| Appendix II.— | |
| Recapitulation of Early Experiments—Efficiency of Screw Propellers, Steering, Stability, &c.—The Comparative Value of Different Motors—Engines—Experiments with Small Machines Attached to a Rotating Arm, | [130] |
| Index, | [163] |