2 6 8 MifceUanea Curio fa, 



The Famous Mr. Ifaac Newton'* 

 Theory of the Moon. 



THIS Theory which hath been long expect- 

 ed by all the true Lovers of AJlronomy, 

 was communicated from Mr. Nw^w to Dr. Gre- 

 gory* Aftronomy Profeflbr at Oxford, and by him 

 publiihed in his Aftron. Eletn. Philof. and Geomet, 

 p. 3 3 6. From whence, as it was lately tranflated 

 into Englifh, I thought fit to infert it here. 



By this Theory, what by all Aftronomers was 

 thought moft difficult and almoft impofTible to 

 de done, the Excellent Mr. Newton hath now 

 effected; vi%. to determine the Moon's Place 

 even in her Quadratures, and all other Parts of 

 Ijer Orbir, befides the Syzygys, lb accurately 

 by Calculation, that the Difference between that 

 and her true Place in the Heavens, (hall fcarce 

 be above two minutes ' in her Syzygys, or above 

 three in her Quadratures, and is ufaally fb final], 

 that it may well enough be reckon'd only as a 

 Defect in the Obfervation. ' And this Mr. New- 

 ton experienced, by comparing jt with very ma- 

 ny Places of the Moon, bbferv'd by Mr. Flam- 

 Jleed, and communicated to him. 



The Royal Obfervatqry at Greenwich, is to 

 the Weft of the Meridian of Paris, z degrees, 

 19 minutes. Of Vraniburghy Iz degrees, 51 

 minutes, 30 feconds. And of Ged&mm> 18 de- 

 gees, 48 minutes. 



The 



