At this period, according to Lexell, the comet was moving in an ellipse with a period of more than sixteen years, and at such a distance there would be no hope of our seeing it again. He finally considered the comet of 1770 as definitely lost. However, when Brooks, the famous comet-hunter of Geneva, New York, discovered a comet in 1889, which is known as Comet 1889 V, as it was the fifth comet discovered that year, it was supposed to be the long-lost Lexell comet of 1770. For that reason it is known as the Lexell-Brooks comet. Previous to 1886, the comet discovered in 1889 was traveling around the sun in an immense ellipse, taking it out beyond the planet Uranus. Around and around the sun it went, as a moth flutters around a lamp, until in the year 1886 it came under the magic spell of Jupiter. Unable to resist this planet’s persuasive influence, the path of the comet was reduced to a smaller one requiring only seven years for its completion. Apparently on this occasion the comet passed too near Jupiter for safety, and was reduced to four fragments in consequence. When it approached the sun in 1889, and was discovered by Brooks, it may probably have been one of the four fragments; at any rate, this is the opinion of Dr. Charles Lane Poor, of New York, who made a careful and most exhaustive study of the comet and its eccentricities. It remained visible with telescopes of ordinary power until March, 1890, after which date it could only be seen with the great telescope at the Lick Observatory, at Mount Hamilton, California. With this magnificent instrument Professor Barnard followed the comet until January, 1891. The path of its next return was calculated so accurately that when it was rediscovered on June 20, 1896, by Javelle, it was seen within a distance less than one quarter the diameter of the moon from its predicted place. By this time the comet had grown fainter, as though enfeebled by its long wanderings and the vicissitudes of its career, and it remained visible for only a few months, finally disappearing in February, 1897. For a third time the comet came near enough for us to see it, and this occurred during the summer of 1903, when it remained visible until the following January. It was then so faint, it could only be observed with the largest telescopes. The future of the comet seems as likely to be as interesting as its past.