On the return from this voyage, the sight of gold placed the fame and advantage of the enterprizes and discoveries of Don Henry beyond the reach of prejudice and detraction, and the former murmurings and discontents against his proceedings were changed into admiration and applause. In 1443 Nuno Tristan was again sent out, with orders to prosecute, the discovery of a coast which now seemed so likely to prove advantageous to the commerce of Portugal. He now doubled Cape Blanco, or Branco, which he had discovered in his former voyage, and, about ten leagues farther to the south-east, fell in with an island, or rather cluster of seven islands, called _Adeget_ by the natives, but which have since, with the bay in which they lie, received the name of Arguim, or Arguin. The small canoes which were used by the natives of this coast were at first mistaken for some strange kind of birds, as the people sit upon them astride, using their feet instead of paddles, to urge them along. To one of the islands in this bay Tristan gave the name of _De las_ Garças, on account of the seasonable supply which he there received. From this place Nuno Tristan returned into Portugal, with some of the natives of the country. Don Henry, in 1444, made an exchange with Massiot de Betancour, lord of the Canary Islands, for the islands of Lancerota, Fuertaventura, and Ferro, giving him some possessions in the island of Madeira in their stead; and immediately fitted out a powerful squadron, commanded by the grand master of his household, Fernand de Castro, to take possession of this new acquisition, and to subdue the remaining islands, Canaria, Palma, Gratioso, Inferno, Alegrazze, Santa-Chiara, Rocca, and Lobos. But, as the king of Castile afterwards laid claim to the Canaries, Don Henry resigned his conquests, finding the value of these islands by no means answerable to his expectation.