Swan : a new almanack for the year of our Lord God 1684 : being the bissextile or leap-year, and from the creation of the world at the spring 5687 years compleat : wherein is shewed the principal aspects of the planets, a table of annuities and reversions, the terms both at London and Cambridge, with other things of note in the university : calculated properly for the famous university and town of Cambridge, where the pole is elevated 52 deg. and 17 min. above the horizon.