We were to call at Jambouassú, a sitio about fifteen miles below Baião, where Senhor Seixus, to whom we had a letter, sometimes resided. The house is situated up a narrow igaripé, the entrance to which even our Indians had much difficulty in discovering, as it was night when we reached the place. Mr. Leavens and myself then went in the montaria up the narrow stream, which the tall trees, almost meeting overhead, made intensely dark and gloomy. It was but a few hundred yards to the house, where we found Senhor Seixus, and delivered the letter from his partner in Pará; and as it is a very good specimen of Portuguese composition and politeness, I will here give a literal translation of it. “_Senhor Jozé Antonio Correio Seixus & Co., Baião._ “FRIENDS AND GENTLEMEN,— “Knowing that it is always agreeable for you to have an opportunity of showing your hospitable and generous feelings towards strangers in general, and more particularly to those who visit our country for the purpose of making discoveries and extending the sphere of their knowledge; I do not hesitate to take advantage of the opportunity which the journey of Mr. Charles Leavens and his two worthy companions presents, to recommend them to your friendship and protection in the scientific enterprise which they have undertaken, in order to obtain those natural productions which render our province a classic land in the history of animals and plants. “In this laborious enterprise, which the illustrious (_elites_) travellers have undertaken, I much wish that they may find in you all that the limited resources of the place allows, not only that whatever difficulties they encounter may be removed, but that you may render less irksome the labours and privations they must necessarily endure; and for men like them, devoted to science, and whose very aliment is Natural History, in a country like ours abounding in the most exquisite productions, it is easy to find means to gratify them. “I therefore hope, and above all pray you to fulfil my wishes in the attentions you pay to Senhor Leavens and his companions, and thus give me another proof of your esteem and friendship. “Your friend and obedient servant, “JOÃO AUGUSTO CORREIO.”