The universal navigator; or, A Comprehensive Treatise of navigation; containing, I. The most useful Problems in Geometry, Measuring of Plank, Timber Bales, Boxes, and Tunnage of Ships. II. Trigonometry with its application to the taking of Heights and Distances, accessible and inaccessible. III. Navigation, (viz.) Plain Sailing, Traverse Sailing, Mercator, Middle Latitude, and Parallel Sailing, with all the several examples wrought Geometrically, Trignometrically, by Logarithms, Arithmetically, by Natural Sines and Tangents, Instrumentally, and by Tables of Latitude and Departure. To which is annexed a curious Collection of Questions to exercise all the above kind of Sailing, with a large and correct Table of Difference of Latitude and Departure, and Meridional parts. Also a Table of Latitude and Longitude of Places. IV. Great Circle Sailing, with a curious Collection of Questions applied thereto, several of which have never appeared in any Treatise of Navigation extant. Oblique Sailing, Turning to Windward, Sailing in Currents, with a Collection of Questions both curious, useful, and entertaining, to exercise the same. V. The Gregorian Calender, shewing the best method of finding the Prime-Epact, Moon's age, time of High Water, with a large Tide-Table, alphabetically digested, the manner of working Observations, the best Method of finding the variation of the Compass. To keep a Sea Journal in the best approved method, both in Merchant's Ships and the Royal Navy, also to correct the Dead Reckoning by a good Observation, by the easiest and best approved Method, illustrated with full, proper, and practical examples of the same, together with all useful Astronomical Tables, viz. the Sun's Declination, a Table of Logarithms, of Nat. and Artificial Sines and Tangents, with a curious collection of Astronomical Problems useful in taking Observations at any time of the Day, or by two Observations, and having the time between them, without regarding the Hour; several of them have not appeared in any other Author. With an appendix, shewing how to work all the cases in navigation by the pen arithmetically, without Books, Tables, or Instruments. By William Chambers, Teacher of the Mathematics.