In 1503 the Portuguese sent a third fleet of six vessels under Gonzalo Coelho to make farther explorations on the coast of Brazil, then called Santa Cruz, and to sail, if possible, around its southern extremity to India, an idea that seems to have been conceived during the preceding voyage, but which could not then be carried into effect for want of supplies. Vespucci commanded one of the vessels, and set out with high hopes of accomplishing great things for his country, his God, and himself. This is known as Vespucci's fourth voyage. Beyond the account which he gives in his letters, little is known of it except the fact that Coelho made such a voyage at the time. The identity of the two expeditions has not been undisputed, but Humboldt and Major both show that there can be little doubt in the matter. The fleet sailed from Lisbon on the 10th of June—Vespucci says May—remained twelve or thirteen days at the Cape Verde Islands, and thence sailed south-east to within sight of Sierra Leone. The navigators were prevented by a storm from anchoring, and so directed their course south-west for 300 leagues to a desert island in about lat. 3° south, supposed to be Fernando de Noronha, where Coelho lost his ship on the 10th of August. Vespucci's vessel was separated from the rest for eight days, but afterward joined one of them, and the two sailed south-west for seventeen days, making 300 leagues, and arriving at the Bahía de Todos os Santos. Remaining there two months and four days, they followed the coast for 260 leagues to the port now called Cape Frio, where they built a fort and left twenty-four men who had belonged to the vessel which had been wrecked. In this port, which by Vespucci's observations was in lat. 18° south and 35° (or 57°) west of Lisbon, they remained five months, exploring the interior for forty leagues; they then loaded with Brazil-wood, and after a return voyage of seventy-seven days arrived in Lisbon June 28 (or 18), 1504. Vespucci believed the other ships of the fleet to have been lost, but after his account was written, Coelho returned with two ships; nothing, however, is now known of his movements after the separation. _Di Amerigo Vespucci Fiorentino_, in _Ramusio_, tom, i., _Lettera prima_, fol. 139, _Lettera secondo_, fol. 141, _Sommario_, fol. 141; _Viages de Vespucio_, in _Navarrete_, tom. iii. pp. 281-90; _Southey's Hist. Brazil_, vol. i. p. 20. [Sidenote: DIVERS EXPEDITIONS.]