THERE exists exists an anonymous narrative of the first voyage of Vasco da Gama to India under the title Roteiro da Viagem de Vasco da Gama em MCCCCXCVII. Although it is called a roteiro, it is in fact a purely personal and popular account of the voyage, and does not contain either sailing directions or a systematic description of all the ports which were visited, as one might expect in a roteiro. There is no reason to believe that it was written by Vasco da Gama. An officer in such high authority would not be likely to write his narrative anonymously. The faulty and variable orthography of the roteiro also renders improbable the hypothesis that Vasco da Gama was the author.
The journal of the first voyage of Columbus contains many allusions to the birds which were seen in the course of it by the great discoverer. In this respect the roteiro of the first voyage of Vasco da Gama resembles it. The journal of Columbus is the earliest record of an important voyage of discovery which recognises natural history as an aid to navigators, the roteiro is the next.
The author of the roteiro notes that birds resembling large herons were seen in the month of August, 1497, at which time, I opine, the vessels of Da Gama were not far from the Gulf of Guinea, or were, perhaps, making their way across that gulf.
