Elementary natural philosophy : designed for high schools and academies (1881)
Griffin, La Roy F. (La Roy Freese), 1844-1916 · Philadelphia : Sower, Potts & Co. · leaf 74
tem which carries two bulbs near itslower end. The upper one is hollow, and thelower is filled with mercury, so that the instru-ment always stands perpendicular to the surfaceof the liquid. 229. Baumes Hydrometer is graduated ar-bitrarily, hut in different ways for liquidsheavier than water, and…
Physics
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