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The European papers speak of a Comet that wilt appear within 60,000 miles of the Earth's orbit, some time in the year 1882. 1.-the earth should hap pen to be in that portion of its orbit nearest the path ofthe Comet, in its ap- proach to the sun, they sayits motion will will be be much distarb bed, and serious eoi,- sequences may reasonably be apprehen- ded. M. Lalande has computed that Comets may pass within 30, ,00O leagues without sensibly deranging the motion ofthe Earth. The Comet of l470 ap- preached so near the Earth as to in- crease its periodical time upwards of two days; and had its mass been equal to that of the Earth, it is computed by La Place, the Earth's motion in her or pit would have been equally retarded, and consequently have increased the length of the year nearly 49 hours As no such effect was produced, the disturbing force of the Comet was con sidered insensible. The mass of the Comet was ,50OOth part less than that of the he Earth. ii ii4454 the Moon was eclipsed by Comet; which must have passed within200,0 0,000miles ofthe Earth. and yet-it is known that no effect was produced by its attractive force, either on the Earth or Moon. The immense velocity of Comets may be principal reason why they do not more sensibly effect the motion ofthe planets. That of 1880 was calculated by Newton to move at the rate of S00,000 miles an hour, and Brydone observed one at Pa lermo, in ITO, whose velocity he com puted 10 be equal to 2,500,000 miles an hour. The Comet of i459 is best known by astronomers. It's period is computed to be about 76 years, though from it's motion being disturbed by the planets, it is sometimes longer. It ap. peared in l6s2 very bright; and was looked after withyery great anxiety in 1858 ;-but Clairaplt determined from