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The comet of 1531, 1607, and 1682, having returned in the year 1759, according to Dr. Halley's prediction in his Synopsis Astronomiæ Cometicæ, first published in the Philosophical Transactions in 1705, and re-published with his Astronomical Tables in 1749, there is no reason to doubt that all the other comets will return after their proper periods, according to the remark of the same author.

XXIV. Advertisement of the expected return of the comet of 1532 and 1661 in the year 1788