Page:Popular Science Monthly Volume 88.djvu/350

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Forts on Rails to Travel Along Our Defenseless Coasts

A New York inventor, Lawrence Luellen, proposes the mounting of heavy guns on rails to be run between concrete emplacements at suitable points. General Crozier, the foremost ordnance expert of the United States Army, has thought well enough of the proposal to sketch mountings for the guns. The guns can be quickly mobilized and used wherever an attack is threatened or actually begun. Any desired number of guns can be concentrated at a single spot—something which is not possible with permanent fortifications

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