The Atlantic Ocean, from the equator northward, with the adjacent coasts, and place names of many rivers and ports. There is a curious remark engraved beneath the cartouche: "Tho' Columbus is generally supposed to have been the first Discoverer of ye New World, Yet there is great probability that Madoc a Prince of North Wales sailed from thence & landed on ye Coast of Florida anno 1170 as ye reader may observe p.190 of this work." That legend, of course, gave rise to the belief of some that the Mandan Indians of the western plains were descendents of the legendary Madoc. The page number refers to John Harris's Navigantium, from which this map was removed.