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across the Atlantic and back, or around the world. Some of them now carry in addition to torpedo tubes cannon of as much as six inches caliber, for use when they are not fully submerged.
MANY INVENTIONS War in the air comprises the use of vast dirigible balloons, and of swift and agile aeroplanes driven at almost incon
FIG. 1 FIG.2 FIG. 3
FIG.4 TYPES OF SHELLS Fig. 1.-Shrapnel shell, packed with bullets that spread. Fig. 2.-A French quick-firer shell, like an enlarged rifle cartridge. Fig. 3.-The “Universal” shell, combining the action of shrapnel and high explosives. Fig. 4.A fuse-setting machine.
ceivable speed. Bombs and rockets are used for signaling and for illuminating purposes on a scale never before known. Poisonous gases are employed, blown against the enemy through pipes from vast retorts. These gases are sometimes asphyxiating and life-destroying, sometimes they are calculated to destroy the sight of the enemy, and some
FIELD CASEMENTS AND BOMB-PROOFS
SECTION OF INTRENCHMENT IN FIRM SOIL AND MIL
ITARY NAMES OF PARTS
PALISADES IN DRY DITCH IN FRONT OF PARAPET
Photo by Paul Thompson.
The British GUNS
watching the effect of the fire.