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Scientific American, Vol. 58, No. 13 (March 1888) (1888)

leaf 3

An illustration from Scientific American, Vol. 58, No. 13 (March 1888), 1888, leaf 3
has been as- (I part hydraulic cement, 2 parts of sand, and 3 parts the upper portion of V-shaped slides or center rests, the sumed to be a non-proved discovery. Lately, however, of gravel) was run in between it and the foundation ends of these sections resting on chairs on each side of by improved… … V w V ty ^ V1 w V An invention designed to improve and simplify the THE ISAAC M. BBOWN TABLE SWITCH. form of pack it is necessary for soldiers to carry, and to render the equipment adjustable to all sizes and forms through the pipe, the concrete, consisting of 1 part the center rests, and one…

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