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dually lengthened, until we come to the

80 th Parallel of South Latitude; the upper fcraiPart of which just touches the Horizon, |theand all Places betwixt this and the SouthPole are in total Darkness; but those Paral-§ncilels betwixt this and the Antarctick Circle,

which before were wholly upon the Ho-rizon, are now partly above it; the Lengthof their Days being exactly equal to that ofthe Nights in the fame Latitude in the con- thetrary Hemisphere. This also holds univer-Mcsally, that the Length of the Day in oneLatitude North, is exactly equal to the

Length of the Night in the fame Latitude (hiSouth; and vice versa.

Let us again follow the Motion of theSun, until he has got into the Equinoctial,and take a View of the Globe while it is inthis Position. Now all the Parallels of Latitude are cut into two equal Parts by theHorizon, and consequently the Days andNights are of equal Lengths, viz. 12 Hourseach in all Places of the World; the Sunrising and setting at Six o’Clock, exceptingunder the two Poles , which now lie exact-ly in the Horizon: Here the Sun seems tostand still in the fame Point of the Heavensfor some Time, until by degrees, by his Motion in the Ecliptick, he ascends higher toone, and disappears to the other, there be-ing properly no Days and Nights under thePoles; for there the Motion of the Earthround its Axis can’t be observed.

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