Houzeau & Lancaster 10425, is the only reference to this work found. Written after a return voyage from Jamaica to Hamburg, Germany, aboard the ship ‘Die Flügel des Mercurius’, he did not complete his intended world voyage. John Carte was a well known clockmaker who set up shop in Coventry, 1689, and then London, 1695. He sold a clock to Tsar Peter the Great (1672-1725) who visited London in 1696. Carte then worked in Hamburg c.1700-1708. He was obsessed by the idea of being able to calculate longitude (see p. 55). The accompanying map is similar to that in Shirley (World Maps p. 607, nr. 614) which is a broadside entitled ‘The Frontispiece of the Cosmographical Clock’, 1700. Opposite page 10 is a description of how to use the map. The book was intended to appear in monthly parts (see p. III), consisting of four sheets a month, which Carte confirms on p. V (where he mentions that he had already printed the introductory eight sheets to the whole work). On the same page he also mentions John Bond as the author of ‘Longitude found …’, 1676. Included is a poem ‘Upon Longitude, found out by Mr. John Carte’, in 48 lines, bi-lingual. Other poems follow on pp. 44, 52, 54, and 55. The Bodleian Library, Oxford, possesses a manuscript with the same title as this printed work (Baillie pp. 135- 6). Parts 3 and 4 identified on the printed title are not present, they have not however been traced in any known literature and may never have appeared in print. Baillie (2006) ‘Watchmakers and Clockmakers of the World’; Shirley (1993) 614; Taylor (1967) ‘Mathematical Practitioners of Tudor and Stuart England’ pp. 292 & 415; Wallis (1978) ‘Index of British Mathematicians’ II, p. 19; Worms & Baynton-Williams (2011).