Mercurius coelestis, : being an almanack for the year of the worlds redemption, 1681. And of its creation according to the best of history, 5630. It being the first after bissextile, or leap-year in which is comprized variety of matter fit for such a subject, - as the aspects of the planets, eclipses, sun rising and setting, monthly observations in verse and prose. With other things. Astronomically and astrologically considered. Calculated for the meridian of London