Abstract
THE following, I think, is the explanation of Mr. Fisher's difficulty (NATURE, vol. xx. p. 577), why the January temperaat the equator when the earth is in perihelion is not much higher than in July when in aphelion. The temperature to which Mr. Fisher refers is the ordinary temperature as indicated by the shade thermometer, which of course is simply that of the air. The difficulty is more apparent than real, for if we examine the indirect results which follow from the present distribution of land and water, we shall see that there is no reason whatever why the air at the equator should be hotter in January than in July.
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CROLL, J. Why the Air at the Equator is not Hotter in January than in July. Nature 21, 129–130 (1879). https://doi.org/10.1038/021129b0
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DOI: https://doi.org/10.1038/021129b0
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