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Plate I.
COMET


EB1911 - Comet Fig.1.—Comet 1892, I.jpg
Fig. 1.—COMET 1892, I. (SWIFT), 1892, APRIL 26.

By permission of Lick Observatory (E. E. Barnard)

EB1911 - Comet Fig. 2.—Comet C, 1908.jpg
Fig. 2.—COMET C, 1908, NOV. 16d. 13h. 10m.

By permission of Yerkes Observatory (E. E. Barnard).