Voyage fluvial du Tieté à l'Amazone, (or, more completely, Voyage fluvial du Tieté à l'Amazone par les provinces brésiliennes de St. Paul, Matto Grosso et Gran-Pará, French for River voyage from Tietê to the Amazon through the Brazilian provinces of St. Paul, Matto Grosso and Gran-Pará) is a book written by Hércules Florence. The work deals with the Langsdorff Expedition, which was led by Georg Heinrich von Langsdorff through São Paulo, Mato Grosso and Grão-Pará. The expedition took place from 1825 to 1829; Florence was valued for his skills both as an artist and a cartographer. Source: Wikipedia (en)