Smithsonian miscellaneous collections . o curves of synthesis, it will beremembered, is determined by the records of precipitation from 1850to 1939, centering about 1900, 30 years previous to the interval ofcomparison. The other curve of synthesis is determined by the rec-ords of precipitation from 1850 to 1899, centering about 1875, 55years before the interval of comparison. If one fair forecast of precipitation may be made successfully fromrecords centering 55 years before the event, why not others? Doesnot the claim that regular periodic solar variations largely controlprecipitation deserve
Smithsonian miscellaneous collections . o curves of synthesis, it will beremembered, is determined by the records of precipitation from 1850to 1939, centering about 1900, 30 years previous to the interval ofcomparison. The other curve of synthesis is determined by the rec-ords of precipitation from 1850 to 1899, centering about 1875, 55years before the interval of comparison. If one fair forecast of precipitation may be made successfully fromrecords centering 55 years before the event, why not others? Doesnot the claim that regular periodic solar variations largely controlprecipitation deserve serious consideration? Albany precipitation ipi6 to ipjp.—I now refer more particularlyto figure 4, which gives interesting results for Albany figure 4 the heavy curve shows the smoothed percentages of normalprecipitation, 1916 to 1939. The lighter curve gives the synthesis of theeffects of 22 regular periodic variations of solar radiation, which in-fluence the precipitation at Albany. All these periods are approxi-. ^ ^»( M tt
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Keywords: ., bookauthorsm, bookcentury1800, bookdecade1860, booksubjectscience
