Philosophical instructor, or, Webster's elements of natural philosophy : subdivided into principles and illustrations ; intended for academies, medical schools, and the popular class-room (1824)
Eaton, Amos, 1776-1842, Webster, John, fl. 1804-1824 · Albany : Printed by Websters and Skinners ... · leaf 62
s more minutely deter-mined. There are many other kind of barometers, the con-struction of which renders them less perfect than thepreceding ; therefore, as their description would bemore curious than useful, they have been omitted. Thermometer. The thermometer is a small tube and bulb filledwith a… … 60 THERMOMETER. heat; therefore, if any fluid body be enclosed in asmall glass tube pureed from air, it will sink or con-tract from exterior frigidity, and rise or expand onthe increase of heat. This tube of the instrument is generally filled withspirits of wine, linseed oil, or quicksilver.…
Physics
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