Alexander von Humboldt

COSMOS: A Sketch of the Physical Description of the Universe, Vol. 1

Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 1

Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 2

Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 3

Works of Alexander von Humboldt

Narrative of the Circumnavigation of the Globe by the Austrian Frigate Novara, Volume I

Personal Narrative Of Travels To The Equinoctial Regions Of America, During The Years 1799-1804, Vol.1 (Unabridged)

Cosmos: A Sketch Of A Physical Description Of The Universe: Introduction (Unabridged)

Die Kosmos-Vorträge von 1827/1828

Kosmos

Die Südamerika-Reise. Reise in die Äquinoktial-Gegenden des Neuen Kontinents

Personal Narrative of Travels to the Equinoctial Regions of America, During the Years 1799-1804, Vol.3 (UNABRIDGED)