The mecographie of ye loadstone : Tat is to say ane description of the lenthes or longitudes, quhikis ar son be ye obseruations of ye loadstone: this moyen is verse certain & and neuhe fond ond and schauis phou meikil ye nidil or guideymant goir a fide or fleis from yelyn meridional, in qual part of ye land, or of ye sie yt he at in and also quihikis, ye lenthe geographique from degre to degre be tables. It is ane vork necessaire for ye admirals, cosmographer, astrologues, geographes, hydrographes, skippers, geometriens, or archivctes, and to tais that makis ye horologes for ye sone and other instruments of ye mathematiques ye dou passe be ye lodeflune. Invented and maid ve Vnilham Nautonier Lord off Casteliranck in Langedoc. [...] - Nautonier, Guillaume de, (par Raimond Colomies, imprimeur en l'Vniuersitié de Tolose, & par Antoine de Courteneusue, aux frais de l'autheur.,, 1603)