Page:Popular Science Monthly Volume 88.djvu/529

 Popular Science Monthly

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���the picture. These guns are intended to be used at the two ends of the Panama Canal

���will be lengthened so that the powder charf^Ls inay exert a longer push on the projectile. It is claimed that this expedient will make our fourteen-inch gun of the future even more powerful than the fifteen-inch gun of the Queen Elizabeth, which at present is unequaled

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