III. Preliminary report to the Committee on solar physics on a method of detecting the unknown inequalities of a series of observations
1879 ◽
Vol 29
(196-199)
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pp. 106-123
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Keyword(s):
1. Our chief reason for suspecting the existence of a connexion between the state of the solar surface (as this is revealed by spots) and the magnetism and meteorology of the earth is derived from the fact that our observational series of sun-spots, on the one hand, and of magnetical and meteorological changes, on the other, are believed to be all subject to a common inequality, whose period (about 11 years) is virtually the same in all.