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Scientific American, Vol. 36, No. 16 (April 1877) (1877)

leaf 14

An illustration from Scientific American, Vol. 36, No. 16 (April 1877), 1877, leaf 14
etector, capable of accurately con- lecture delivered before the Royal Institue of Ar- trolling the motion of a watchman or patrolman at the chitects, London, by A. Payne, with, discussion of the CELEBRATED FOOT LATHKS. ON THE PROGRESS OF AERONAUTICS. different stations of his beat. Send for… … © 1877 SCIENTIFIC AMERICAN, INC.

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