On The Uses of the Common Thermometer as a Hydrometer
G, K—s, pseud. [Robert Gordon] *
Meteorology, Instruments, Heat
Horace B de Saussure, Jean A Deluc
Discusses and describes the 'differential thermometer' used by John Leslie to 'measure the relative dryness of the atmosphere' in place of a conventional hygrometer (381). Relates how a common thermometer can be used in a similar way, stating that, 'though it may not possess the same degree of delicacy, it is sufficiently accurate for all the ordinary purposes of meteorology' (382).
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