Hygrometers - Early works to 1800

A description of the nature, construction, and use of the Torricellian, or simple barometer. With a Scale of Rectification For estimating the True Altitude of the Column of Mercury (equal to the Weight of the Atmosphere) to the Hundredth Part of an Inch. Also the theory and construction of the compound barometer ; the Nature and Use of the Thermometer, and Hygrometer. With an Appendix, Containing an Analytical Solution of a Barometrical Problem. The whole illustrated by Copper-Plate Figures of the several Instruments. By Benjamin Martin.