"Films for the Humanities & Sciences (Firm)" . . . . "1800 - 1899" . . . . "Internet videos"@en . . . . . . "Scientist, cartographer, and ecological pioneer, Alexander von Humboldt set himself a vast goal: \"to find out how the forces of nature interact upon one another.\" This program follows the first two years of Humboldt and Bonpland's explorations as they charted rivers, gathered samples, and documented thousands of species of fauna and flora in Colombia, Cuba, and the Andes. Along with striking location footage, many of the expedition's original maps, manuscripts, and diverse specimens are seen in Berlin's Humboldt Museum for Natural History. (53 minutes)."@en . . . "Videorecording"@en . "Educational films"@en . . . "History"@en . . . . . . . "By River into the Unknown"@en . . "Scientist, cartographer, and ecological pioneer, Alexander von Humboldt set himself a vast goal: \"to find out how the forces of nature interact upon one another.\" This program follows the first two years of Humboldt and Bonpland's explorations as they charted rivers, gathered samples, and documented thousands of species of fauna and flora in Colombia, Cuba, and the Andes. Along with striking location footage, many of the expedition's original maps, manuscripts, and diverse specimens are seen in Berlin's Humboldt Museum for Natural History."@en . "By River into the unknown"@en . . .