Tissandier, Gaston, 1843-1899, Frith, Henry, 1840-, Harry Houdini Collection (Library of Congress) DLC · London, New York [etc.] Ward, Lock & Co · leaf 602
dwith air, is hermeticallyclosed with a cork, through which is passed a cylinder of wood, surmountedby a wooden disc, D. The apparatus is terminated at itslower end by a small tray, C, on which one can put piecesof lead in variable quantities. It is then plunged into a3-lass filled with water. The… … Nicholsons Areometer, contrived to serve asa balance. 40 SIMPLE PHYSICS. which is fastened to the upper part of the glass by meansof four iron wires in the shape of a cross. The stem isdivided in such a way that the space comprised in eachdivision represents the volume of a cubic centimetre.Thus…
Scientific recreations
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