- Cărți electroniceViews of NatureAlexander von Humboldt
- Cărți electroniceCosmosE. C. (Elise C.) Otté
- Cărți electroniceEssay on the Geography of PlantsAlexander von Humboldt
- Cărți electroniceViews of the Cordilleras and Monuments of the Indigenous Peoples of the AmericasAlexander von Humboldt
- Cărți electronicePolitical Essay on the Island of CubaAlexander von Humboldt
- Cărți electroniceViews of Nature – Contemplations on the Sublime Phenomena of Creation with Scientific IllustrationsAlexander von Humboldt
- Cărți electroniceNarrative of the Circumnavigation of the Globe by the Austrian Frigate Novara, Volume I (Commodore B. Von Wullerstorf-Urbair,) Undertaken by Order of the Imperial Government in the Years 1857, 1858, & 1859, Under the Immediate Auspices of His I. and R. Highness the Archduke Ferdinand Maximilian, Commander-In-Chief of the Austrian Navy.Karl Ritter von Scherzer
- Cărți electronicePersonal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 1Aimé Bonpland
- Cărți electronicePersonal Narrative of Travels to the Equinoctial Regions of AmericaAimé Bonpland
- Cărți electroniceLetters of Alexander von Humboldt to Varnhagen von EnseAlexander von Humboldt
- Cărți electronicePersonal Narrative of Travels to the Equinoctial Regions of America (Vol.1-3)Alexander von Humboldt
- Cărți electroniceCuadros de la naturalezaAlexander von Humboldt
- Cărți electroniceEscritos 1789 - 1859 Volumen IAlexander von Humboldt
- Cărți electroniceAnsichten der NaturAlexander von Humboldt
- Cărți electroniceGoethes Briefwechsel mit den Gebrüdern von HumboldtJohann Wolfgang von Goethe
- Cărți electroniceReise in die Aequinoctial-Gegenden des neuen Continents v. 4 In deutscher Bearbeitung von Hermann HauffHermann Hauff
- Cărți electroniceKosmos (Alle 4 Bände)Alexander von Humboldt
- Cărți electroniceAlexander von HumboldtAlexander von Humboldt
- Cărți electronicePersonal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 2Aimé Bonpland
- Cărți electronicePersonal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 3Aimé Bonpland
- Cărți electroniceReise in die Aequinoctial-Gegenden des neuen Continents. Band 1.Alexander von Humboldt
- Cărți electroniceReise in die Aequinoctial-Gegenden des neuen Continents. Band 3.Alexander von Humboldt
- Cărți electroniceAnsichten der NaturAlexander von Humboldt
- Cărți electronicePolitical Essay on the Kingdom of New Spain, Volume 1Alexander von Humboldt
- Cărți electronicePersonal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 2Aimé Bonpland
- Cărți electroniceAnsichten der NaturAlexander von Humboldt
- Cărți electroniceIdeen zu einer Physiognomik der GewächseAlexander von Humboldt
- Cărți electroniceEscritos 1789 - 1859 Volumen IIAlexander von Humboldt
- Cărți electroniceAlexander von Humboldt - Ansichten der NaturAlexander von Humboldt
- Cărți electroniceRede, gehalten bei der Eröffnung der Versammlung deutscher Naturforscher und Ärzte in Berlin, am 18. September 1828Alexander von Humboldt
- Cărți electroniceReise durchs Baltikum nach Russland und Sibirien 1829Alexander von Humboldt
- Cărți electroniceAnsichten der Natur - Die Vermessung SüdamerikasAlexander von Humboldt
- Cărți electroniceReise in die Aequinoctial-Gegenden des neuen Continents. Band 1.Alexander von Humboldt
- Cărți electroniceReise in die Aequinoctial-Gegenden des neuen Continents. Band 3.Alexander von Humboldt
- Cărți electroniceKosmosAlexander von Humboldt
- Cărți electroniceKosmosAlexander von Humboldt
- Cărți electronicePersonal Narrative of Travels to the Equinoctial Regions of AmericaAlexander von Humboldt
- Cărți electroniceBriefe zwischen A. v. Humboldt und GaussAlexander von Humboldt
- Cărți electroniceAlexander von HumboldtAlexander von Humboldt
- Cărți electroniceAmerikanische Reise 1799-1804Alexander von Humboldt