Page:A Voyage in Space (1913).djvu/267

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THE SUN
247

ments of the same kind as before, viz. of the density of the negative at different points. In Fig. 79 the

Fig. 79.

light of the corona is supposed to be equal in all directions as in the top picture. If on taking a pair of pictures, one polarized for bending right and left, and the other up and down, we got the