A Treatise of the System of the World: By Sir Isaac Newton. Translated Into English

abfolute Æther afcend aftronomers almoſt alſo aphelions apparent diameter appear area's arifing attract becauſe bodies cafe cauſe centripetal force circum-folar Comet common center computation courſe decreaſe defcend defcribe deflexion denfity diminiſhed diſtance diurnal diurnal motion duplicate proportion duplicate ratio Earth Ecliptic equator errour faid fame fatellite feen felf fenfible fhine fhould fide fince firft firſt fixed Stars Flamsteed fmoak folar fome fphere fplendour ftance fuch fuppofe furface fyzygies gravity greater greateſt head heavens height hence increaſe Jupiter leaſt lefs leſs libration light likewife magnitude mean diſtance meaſured Moon Moon's moſt motion muſt nearer nodes obfcure obfervations oppofite orbis magnus orbit orbs paffed parallax paſs perigee perihelion phænomena Planets pofition Prop quadratures quantities of matter quiefcent raiſe reaſon repreſent reſpect revolved rifing right line Saturn ſeen ſmall ſpace Sun's tails of Comets teleſcope themſelves thence theſe thofe thoſe tion trajectory velocity Venus weft