Complete epitome of practical navigation : Containing all necessary instructions for keeping a ship's reckoning at sea: with the most approved methods of ascertaining the latitude, by meridian, single or double altitudes, and the longitude, by chronometers, or lunar observations; including a journey from LOndon to Australia; and every other requisite to form a complete navigator; the whole being rendered perfectly easy, and illustrated by several engravings: to which is added a correct and extensive set of tables, preceded by a copious explanation of each table: considerably aumented and improved; and adapted to the new Nautical Almanac [Hardback]