The map of Europe in six sheets, four of which were engraved at Louvain and two at Duisbourg, was dedicated to Antoine Perrenot, Bishop of Arras, and published at Duisbourg in the year 1554. The only original example now known is that belonging to the Breslau Library. [269] This map with title “Britannicarum insularum descriptio” was published at Duisbourg in the year 1564. Reproduction of the only known original example noted in n. 71. [270] This was prepared with great care and offered in person by Mercator to Duke Charles of Lorraine at Nancy. Apparently no original copy is in existence. [271] Raemdonck. Orbis Imago; Breusing, A. Das Verebnen der Kugeloberfläche. Bremen, 1893. pp. 31-48; Steinhauser, A. Stabius redivivus, eine Reliquie aus dem 16 Jahrhundert. (In: Zeitschrift für Wissenschaftliche Geographie. Wien, 1885. pp. 289-291.); D’Avezac, M. A. P. de. Coup d’oeil historique sur la projection des cartes de géographie. Paris, 1875. (In: Bulletin de la Société de Géographie de Paris. Paris, 1865. Tom. V.); Wright, E. The correction of certain errors in navigation. London, 1599. There may be found numerous references to the principle underlying the Mercator projection. See in addition to above references Wagner, op. cit.; Zondervand, op. cit.; Hall, op. cit., each with noted citations. This map, with title “Nova et aucta orbis terrae descriptio ad usum navigantium emendate accommodata,” was dedicated to Duke William of Cleves, and was published at Duisbourg in the year 1569. Original copies may be found in the Bibliothèque Nationale, and in the Stadtbibliothek of Breslau, the former reproduced by Jomard, the latter as noted in n. 71. A long inscription on the map explains the principle of the new projection and its use for navigation. [272] Raemdonck, J. van. Les sphères terrestre et céleste de Gérard Mercator (1541-1551). Notice publiée a l’occasion de la reproduction de ces sphères a l’aide de facsimilé de leurs fuseaux origineaux, gravés par Mercator et conservés a la Bibliothèque Royale a Bruxelles. St. Nicolas, 1875; Fiorini M. Globi di Gerardo Mercatore in Italia. Rome, 1890. (In: Bollitino della Societe Geografica Italiana. Roma, 1890.); Breusing. Gerhard Kremer, p. 9. Gérard Mercator, p. 9.