Journal - Franklin Institute of the State of Pennsylvania (1826)
Franklin Institute, Philadelphia, Franklin Institute (Philadelphia, Pa.) · [Philadelphia : Franklin Institute] · leaf 318
When the temperaturesto be indicated admit of it, lecturers have, in preference to using thethermometer, resorted to the freezing of water, to the melting ofwax, to the inflaming of phosphorus, the boiling of water, &c., asmore adequate means of rendering evident the temperatures in ques-tion.… … 304 Radiating and Absorbing Powers of Surfaces, ^-c. show the powers of different surfaces in radiating and absorbing heat,with other phenomena, which will be referred to in the sequel. -^g- ^ To produce a sensibly uni- form temperature, a prismaticvessel, A B C DFG, fig. l,ofsheet iron, of a…
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