Elementary treatise on physics experimental and applied for the use of colleges and schools (1890)
Ganot, A. (Adolphe), 1804-1887, Atkinson, E. (Edmund) · New York : W. Wood · leaf 384
nctness. It will presently be explained (401) how the weight of the vapour containedin a given \olume of air may be deduced from the hygrometric state. 393. Different kinds of hygrometers.—Hygrometers are instruments formeasuring the hygrometric state of the air. There are numerous varieties… … Fig. 3S8. absorbs moisture—chloride of calcium, for instance. The substance havingbeen weighed before the passage of air, and then afterwards, the increasein weight represents the amount of aqueous vapour present in the air. Bymeans of the apparatus represented in fig. 358 it is possible to examine…
Physics
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