Text-book of general physics, for the use of colleges and scientific schools (1899)
Hastings, Charles Sheldon · Boston: Ginn & company · leaf 175
23. Air Thermometer. —A convenient form of air ther-mometer devised by Jolly is representedin Fig. 131. A is a glass bulb filled withair and communicating with the tube BI)through a small bore. EC and BB aretwo glass tubes connected by the flexiblepipe F€r and filled with mercury. Byraising or… … Fig. 131. 3IEE C URIAL THEEMOME TEE. 165 added to the barometric hight gives the pressure of the airin A. Call ha the pressure in the bulb at the temperature0° C. and h the pressure at any other temperature. then,bv the laws of gases explained below (Art. 138),
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