us, than we in making a West-India Voyage (which is ordinarily perform'd in six Weeks.) That a Sound would not arrive to us from thence in 50000 Years, nor a Cannon-bullet in a much longer time. This is easily computed, by allowing (according to Mr. Newton) Ten Minutes for the Journey of Light from the Sun hither, and that a Sound moves about 1300 Foot in a Second.
The Famous Mr. Isaac Newton 's Theory of the Moon .
THIS Theory which hath been long expected by all the true Lovers of Astronomy, was communicated from Mr. Newton to Dr. Gregory, Astronomy Professor at Oxford, and by him published in his Astron. Elem. Philos. and Geomet. p. 336. From whence, as it was lately translated into English, I thought fit to insert it here.
By this Theory, what by all Astronomers was thought most difficult and almost impossible to be done, the Excellent Mr. Newton hath now effected; viz. to determine the Moon's Place even in her Quadratures, and all other Parts of her Orbit, besides the