Speculum anni: or, Season on the seasons, for the year of our Lord 1777, [electronic resource] : Being the first after bissextile, or leap year. Wherein you will find all things necessary for such a work; sun and moon's rising and setting; moon's southing, planets places and aspects, eclipses, judgments on the weather, and on the four quarters; remarks about the sun, monthly poetry, and other novelties. By Henry Season, licensed physician, and student in the celestial sciences, near devizes. With a particular judgment of the eclipses. The author's forty-fourth impression.