File:Carte de Groenland (1647) - Isaac La Peyrère - 1 full.png

English: Map of Greenland, Hudson Strait (Destroit Christian) and Hudson Bay (Mer Christiane) by French writer Isaac La Peyrère, based on Danish explorer Jens Munk's map of his 1619-20 Northwest Passage expedition, published in his voyage account Navigatio Septentrionalis (1624). La Peyrère's version of the map was published in his book Relation du Groenland (1647), wich includes an abstract of Munk's Navigatio. La Peyrère's abstract and map enjoyed a wider circulation than Munk's original but were disfigured by numerous inaccuracies, a prime example being the wrong latitude at which is placed Munk's Winter Harbour (Port d'hyuer de Munck), about five degrees too far north, an error that following mapmakers would perpetuate for decades.

As we have stated already, Munk's book has never until now been translated into any other language from the original Danish ; and its contents would probably have remained unknown to the world at large, but for the abstract of it which Isaac de la Peyrère incorporated with his book, Relation du Groenlande. Unfortunately this abstract is full of mistakes, some of which are very serious. The mischief thus caused would, however, have been counteracted in a great measure if Peyrère had reproduced Munk's map as he found it in the Navigatio Septentrionalis. Unluckily, the French writer imagined that he could improve on Munk's performance ; and accompanied his book with a map which certainly, as he says, is in the main a reproduction of Munk's, but in which he has introduced considerable alterations, in order to make it agree with his own misunderstandings of Munk's text– a fact of which the reader is not made aware. As it is chiefly through this second edition (if we may so call it) that Munk's map has influenced the subsequent cartography of this region, we cannot avoid entering on a circumstantial examination of it. continuation

— C. C. A. Gosch, in: Gosch, Christian Carl August , ed. (in English) (1897) Danish Arctic Expeditions, 1605 to 1620. Book II The Expedition of Captain Jens Munk, London: Hakluyt Society, p. 175