Essays and observations on the construction and graduation of thermometers, and on the heating and cooling of bodies / By George Martine, M.D.

  • George Martine
Date:
1787
Catalogue details

Licence: Public Domain Mark

Credit: Essays and observations on the construction and graduation of thermometers, and on the heating and cooling of bodies / By George Martine, M.D. Source: Wellcome Collection.

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    Mgheft fummer heat the Jefuits experienced a dif- ference only of 26 degrees in Hubin’s Thermome- ter*, the extent of which I believe differs not much from the like number in ours, fin Bata- via, though a very hot place, and in gr. 6 Touth lat. the excefs of heat above the grcatcft cold was ftill fomething lefs : and in Malaccaf, but 2 deg. of latitude from the equator, the weather is very tenv- perate, and fo equable, that for 7 months together the Ipirit in the Thermometer was never under 6oj nor above gr. 70. j] In the ifle of Bourbon, in the latitude about 22 degrees the difference be- tween the higheft and loweft afternoon hear in a twelvemonth’s time was but 8 divifions in De Reau- mur’s 'Tliermometer, which iDakes up Icarcely i j in ours: and the ordinary difference of the night and day heat in thefe climates was found a fmall matter compared to what we have it commonly with us**. And as the torrid zone excels our countries hereabout in a more equable degree of heat and weight of the atmolphere, fo we are more happily appointed that way than in Sweden * Da Hamel Hift. Ac. Sc. p. 272. f Ibid. p. 273. f Ibid. II Mem. Ac. Sc. 1734, p. 762. *'* Ib. 1666—1698, VII. p. 8*37, 1733, p. 537. and