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Scientific American, Vol. 56, No. 1 (1887) (1887)
leaf 8
RIES, on a system of ordinary rail- The form of battery de way tracks spaced five feet scribed in the following arti- apart. cle ig in accordance with the The positions for firing are plans of Commander Mongin, marked upon the main track in which he proposes the use by a swall crossing analogous of… … © 1887 SCIENTIFIC AMERICAN, INC.Internet Archive · Public domain (published before 1931). Free to use for anything.
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