In his "Lettera" of 1504, his most detailed note, he states that he left the coast of Brazil from Cabo Frío and followed the path of the Sirocco south-east covering 500 leagues (about 3000 kilometres) by sea down to 50°S or 52°S.
The probability is confirmed by Vice-Admiral Ernesto Basilico in The Third Voyage of Amerigo Vespucci (Buenos Aires, 1967) and by Lt-Cdr Barreiro Meiro (General Journal of Navy, October 1968, Madrid).
In the middle of this storm of 7 April we sighted a new land, which we sailed alongside of for almost 20 leagues, finding the coast wild, and we did not see any harbour or people.
3 April is not winter but the first month of autumn and a night of fifteen hours duration implies a mysterious shift of the sun; furthermore, sailors would not find the cold intolerable at that season of the year in 52°S.
[3]: 80 Commenting on Ramsay's dismissal of the possibility that they sank, Stephen Royle notes that several volcanic islands have been known to have disappeared in recent times.