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in displacing the spectral lines. So we must
                                         go on, collecting data, until a time comes
                                         when the meaning of all the facts can be
                                         made clear.
                                             Total Solar Eclipses .–During total so-
                                         lar eclipses the time is so short, and the cir-
                                         cumstances so impressive, that drawings of
                                         the appearance could not always be trusted.
                                         The red prominences of jagged form that
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