The travels and researches of Alexander von Humboldt: being a condensed narrative of his journeys in the equinoctial regions of America and in Asiatic Russia; together with analyses of his more important investigations. With a map of the Orinocco, and engravings.
MacGillivray, William: The travels and researches of Alexander von Humboldt: being a condensed narrative of his journeys in the equinoctial regions of America and in Asiatic Russia; together with analyses of his more important investigations. With a map of the Orinocco, and engravings., New York: Harper & Brothers, 1838, 367 S. (The Family Library, 54.) markieren