I noticed yesterday in S.E. Morison&#x27;s <i>The European Discovery of America: The Northern Voyages</i>, a mention of a book of exploration (mostly toward the far north, apparently), <i>Inventio Furtunata</i> (or <i>Fortunae</i>), mentioned in a letter to Columbus from an English merchant. At the time Morison wrote, nobody had been able to find the book or a clear account of it.