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

Works of Alexander von Humboldt

ASPECTS OF NATURE IN DIFFERENT LANDS AND DIFFERENT CLIMATES WITH SCIENTIFIC ELUCIDATIONS VOL I

Kosmos

Ansichten der Natur

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

Fahrt auf dem Orinoko

Das Buch der Begegnungen (ungekürzt)

Die Kosmos-Vorträge von 1827/1828

Kosmos

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