Abstract
THIS week we have the pleasure of presenting, our readers, by the courtesy of General Myer, with the International Weather Map for July 1878, showing for that month the mean pressure, temperature, force, and prevailing direction of the wind. This is the fourth consecutive number of the series, which began with April of that year, and may be regarded as completing the record of the great outstanding features of those changes which characterised the weather of the northern hemisphere in its transition from the spring to the summer of 1878.1 We shall here chiefly consider the departures from the averages deduced from the curves and figures of the Weather Maps, seeing that these well represent the great seasonal movements of the atmosphere, together with those meteorological conditions which rule the changes of weather occurring in the different regions of the globe on which the welfare and prosperity of nations so intimately depend.
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The United States Weather Maps, April to July, 1878. Nature 21, 565–567 (1880). https://doi.org/10.1038/021565a0
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DOI: https://doi.org/10.1038/021565a0