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Sect.i. of the GLOBES. 37

The principal Use of these Globes (be-pre-sides their serving as Maps , to distinguish ^ein/bfthe outward Parts of the Earth, and the Si-tuations of the Fixed Stars) is to explain andresolve the Phænomena arising from the di- . .urnal Motion of the Earth round its Axis.

It has been (hewed in the Introduction,that the Distance of the Earth from the Sunis no more than a Point, when comparedwith the immense Distance of the Fixed There milStars; therefore let the Earth be in whatp^J?^Point soever of her Orbit, there will be the the Fixedfame Prospect of the Heavens, as a Spectator fCrthf'would • observe, did he reside in the Sun: fetiatorand if several Circles be imagined to pals the Earththro’ the Center of the Earth, and others ,^'” theparallel to them, be conceived to pass thro’the Center of the Sun, these Circles in theHeavens will seem to coincide, and to palsexactly thro’ the fame Stars. Wherefore asto the Appearances of the Fixed Stars, it isindifferent whether the Earth or the Sun bemade the Center of the Universe. Butbecause it is from the Earth that we alwaysobserve the Celestial Bodies, and their ap-parent Motions seem to us to be reallymade in the Heavens, it is more natural, inexplaining the Phænomena arising fromthese Motions, to place the Earth in theCenter. And again, because the Semidia-meter of the Earth, when compared to herDistance from the Sun, is of no sensibleD 3 Mag-