| 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 |
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