Atmosphere : a philosophical work / by George Woodhead.

  • Woodhead, George.
Date:
1852
Catalogue details

Licence: Public Domain Mark

Credit: Atmosphere : a philosophical work / by George Woodhead. Source: Wellcome Collection.

    27/164 page 15
    that is the order we find in Nature; there is the greatest heat, attaining the highest elevation, within the tropics, which thence gradually declines in elevation, and decreases in intensity, towards the poles.* Atmospheric air is susceptible of a great variety of modifications, under some of which it seems to become light, or to give light; of which kind are all artificial hghts.f And the electric light and the Aurora Borealis probably are but modifi- cations of atmospheric air. [This paper, with slight variations, and without any notes except those at pages * It is evident that a distribution of solar heat, ana- logous to the distribution mentioned in the text, might exist on the hypothesis that the atmosphere is equally or evenly spread over the earth, that the sun's light is most intense at the equator and within the tropics, and that its intensity gradually decreases, thence, towards the poles. •f- See note, page 82.
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