The Description and Uses of a New Contriv'd Eliptical Double Dial; as Also of the Universal Æquinoctial DialThe Description and Uses of a New Contriv'd Eliptical Double Dial; as Also of the Universal Æquinoctial Dial

Which Serve to Find the Latitude, Hour of the Day, the True Meridian, the Altitude, Azimuth, and Declination of the Sun; His Place in the Ecliptick, the Time of His Rising and Setting, Length of Day and Night, &c. With a Scheme of Each Dial Curiously Engraven. Very Useful for All Seamen and Travellers, and Our Curious Gentry to Set, Examine, and Adjust Their Pendulums. Whereunto Is Added a Correct Table of the Latitude of the Most Eminent Cities and Towns in Europe; as Also a Table of Equation. By Tho. Tuttell Mathematical Instument-maker at the Kings-Arms and Globe at Charing-Cross