MANUSCRIPT. – William JOURNEAUX. [The working journal of a young midshipman or ‘Master’s Mate’ from Jersey. N.p.:] 1820-1821. 187pp., manuscript, folio (321 x 201mm.) Comprising 187pp. in a single legible hand, the first 123pp. in English and the rest in French, including 27pp. on ‘A Journal of a Voyage from Jersey to New York in the Tough of Jersey’, being entirely navigational detail, including weather, wind and meridian lines, and a further 20pp. on ‘A Journal of a Voyage from London to Madeira and Tenerife in the Snug of Jersey’, includes 4 hand-drawn maps with outline hand-colouring, a hand-drawn globe with meridian lines, a ‘List of Men’, and many mathematical, geometric exercises relating to navigation, 6pp. blank to rear. (Toning, occasional spotting, finger-marks.) Contemporary boards (spine lacking, stained, rubbed). Note: the lessons in navigation are accompanied by many diagrams and calculations. They are titled ‘Geometrical Problems Useful in Navigation’ (4pp.), ‘Trigonometry’ (15pp.), ‘Plane Traverse Sailing’ (6pp.), ‘Middle latitude Sailing’ (1p.), ‘Mercator’s Trav. Sailing’ (4pp.), ‘Mercator’s Sailing’ (5pp.), ‘To Find a Leap Year’ (2pp.), ‘To Find the Latitude of a Place by an Observation of the Sun’ (8pp.), the four maps are of the West Indies, the French-English coastlines, the Canaries, and the French-Spanish coastlines, there are also calculations relating to the rising and setting of the sun, a compass and to the rear, in French, there are exercises on ‘Des Ligne Proportionnelles Consideres dans Les Cercle’, and ‘Definitions Astronomie’ (8pp.).