Relation du groenland

The author assembles navigational reports, maps, and calculations to describe the northern coasts, their uncertain status as island or continent, and notable features such as Cap Faruel, Spitsbergen, and a winter harbor reported by seafarers. The text explains mapmaking choices, derives longitudes from a reported lunar eclipse with guidance from contemporary mathematicians and geographers, and proposes a division of the southern shores into islands based on existing charts. It relies chiefly on Danish and other northern accounts, discusses ice and navigational hazards, notes printing corrections, and leaves some coastal questions open pending further voyages.