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Johnson's natural philosophy and key to philosophical charts : illustrated with 500 cuts; being reduced photographic copies of all the diagrams contained in the author's philosophical series of indestructible school charts ; for the use of schools and families (1878)

Johnson, Frank G., 1835- · Chicago, A.H. Andrews · leaf 173

An illustration from Johnson's natural philosophy and key to philosophical charts : illustrated with 500 cuts; being reduced photographic copies of all the diagrams contained in the author's philosophical series of indestructible school charts ; for the use of schools and families, 1878, leaf 173
277. Figure 17.—To fix the boiling point of thermo-meters.—To fix the boiling point, plunge the instrument into boilingwater, or, what is more accurate, a steam-bath, by means of a vessel, asseen in the figure, leaving the top of the stem or tube in view, as shown HEAT. 167 at N. After the mercury…

Physics · Astronomy

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More pictures from Johnson's natural philosophy and key to philosophical charts : illustrated with 500 cuts; being reduced photographic copies of all the diagrams contained in the author's philosophical series of indestructible school charts ; for the use of schools and families

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