A double ephemeris [electronic resource] : For the year 1701. Or an astronomical treatise, Shewing the daily Motions of the Planets, with the Rising, Setting, and Ecclipses of the Luminaries; A compleat Tide Table of the exact Times of High-Water at London, and divers other Ports; The Equation of Time, with its use for Regulating Clocks and Watches; Directions for Passing and Repassing the Water, with the Rates paid to Watermen and Hackney Coach-Men at London. An Account when and where the Carriers are in London, from most parts of the Kingdom; With other Things pertinent to the Work and for a Pocket-Companion. Also The validity of a Heliocentrick Direction, made manifest in the Nativity of the late King of Spain. By George Parker at the Ball and Star in Salisbury-Court.