LIST OF ILLUSTRATIONS
| The Seraph Made a Quick Glide Below Its Adversary | [Frontispiece] |
| page | |
| Types of Allied Airplanes | [29] |
| Airplanes of the Central Powers | [31] |
| Allies' Distinguishing Mark | [64] |
| Black Cross on German Flyers | [65] |
| French and German Flags | [75] |
| Instrument Board of Standard Airplane | [111] |
| A Dangerous Position | [129] |
| A Safety Manoeuver | [133] |