| CHAPTER | | PAGE | | I | The War In and Under the Ground | 3 | | II | Hand-Grenades and Trench Mortars | 20 | | III | Guns that Fire Themselves | 41 | | IV | Guns and Super-Guns | 62 | | V | The Battle of the Chemists | 85 | | VI | Tanks | 107 | | VII | The War in the Air | 123 | | VIII | Ships that Sail the Skies | 148 | | IX | Getting the Range | 169 | | X | Talking in the Sky | 184 | | XI | Warriors of the Paint-Brush | 209 | | XII | Submarines | 232 | | XIII | Getting the Best of the U-Boat | 253 | | XIV | "Devil's Eggs" | 276 | | XV | Surface Boats | 298 | | XVI | Reclaiming the Victims of the Submarines | 310 | | Index | 339 |
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