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 camp that lies in the open field. All this is accomplished by dropping shells composed partly of some elements not found in our world. These shells are made in such a way that they explode as soon as they touch any substance, and the concussion is much more terrible than is caused by our most powerful explosives. Because no ship could hold together under such destructive shells, the nations abandoned their navies and devoted their energy to devising a safe camp for soldiers and to building these air-vessels with additional improvements.

It was found that the only way to protect a camp was to cover it with a water proof shed, so constructed that nine or ten inches of water would remain on the roof. Then a wide shallow trench was dug around the shed and kept filled with water. These shells will not explode if they fall in that depth of water, but will explode in water of greater depth. You can see at a glance how difficult it is to manage an army under these circumstances. The only redeeming feature is that the enemy also is compelled to resort to the same protection. An international law