English A Narrative of Travels on the Amazon and Rio Negro determination method: SHA-1...
English Travels and Researches of Alexander von Humboldt...
English Voyages and Travels to India, Ceylon, the Red Sea, Abyssinia, and Egypt, Vol. 2...
https://creativecommons.org/publicdomain/mark/1.0/PDMCreative Commons Public Domain Mark 1.0falsefalse English Vols. 1 & 2 of Humboldt's Travels...
English Voyages and Travels to India, Ceylon, the Red Sea, Abyssinia, and Egypt, Vol. 2...
0/PDMCreative Commons Public Domain Mark 1.0falsefalse English The History and Travels of Hector Maclean, Late Sailor (1768). Number one of three....
English Voyages and Travels to India, Ceylon, the Red Sea, Abyssinia, and Egypt, Vol. 3...
English Voyages and Travels to India, Ceylon, the Red Sea, Abyssinia, and Egypt, Vol. 1...