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from the sun is subject to the same pe-
riod. This would have far-reaching effects
on storms, harvests, vintages, floods, and
droughts; but it is not safe to draw conclu-
sions of this kind except from a very long
period of observations.
Solar photography has deprived astronomers
of the type of Carrington of the delight in
devoting a life’s work to collecting data. It
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