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COMET
Plate I.


Fig. 1.—COMET 1892, I. (SWIFT), 1892, APRIL 26.

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


Fig. 2.—COMET C, 1908, NOV. 16d. 13h. 10m.

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