Angelus Britannicus: An Ephemeris for the Year of Our Redemption 1671. Being the Third After the Bissextile Or Leap-year. And from the Creation of the World 5620. ... With Some Brief Observations of the First Opposition of Saturn and Jupiter. Calculated for the Meridian of London, where the Pole Artick is Elevated Above the Horizon 51 Degrees, and 32 Minutes; But May Indifferently Serve for England, Scotland, and Ireland. By John Tanner, Student in Astrology and Physick