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Scientific American, Vol. 51, No. 15 (October 1884) (1884)

leaf 7

An illustration from Scientific American, Vol. 51, No. 15 (October 1884), 1884, leaf 7
^ inch was used, the bore of the gun … THE KEELY DECEPTION.-THE VAPORIC GTJN. being just sufficient to insure a snug fit. Vapor was ad-mitted through the opening, Q-, to a chamber, behind thepacking, having a capacity of one-half pint. A copper tube, yt of an inch external diameter and -f^ ofan inch internal (Fig. & being a. cross…

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