![Humboldt, Alexander von. 1819-1829. Personal narrative of travels to the equinoctial regions of the New Continent, during the years 1799-1804. By Alexander de Humboldt, and Aimé Bonpland; with maps, plans, &c. written Humboldt, Alexander von. 1819-1829. Personal narrative of travels to the equinoctial regions of the New Continent, during the years 1799-1804. By Alexander de Humboldt, and Aimé Bonpland; with maps, plans, &c. written](http://darwin-online.org.uk/converted/scans/1814-29_Humboldt_A597.1-7(online)/1814-29_Humboldt_A597.6a_037.jpg)
Humboldt, Alexander von. 1819-1829. Personal narrative of travels to the equinoctial regions of the New Continent, during the years 1799-1804. By Alexander de Humboldt, and Aimé Bonpland; with maps, plans, &c. written
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The Project Gutenberg eBook of Exploration of the Valley of the Amazon, Part I (of 2), by William Lewis Herndon
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![Humboldt, Alexander von. 1819-1829. Personal narrative of travels to the equinoctial regions of the New Continent, during the years 1799-1804. By Alexander de Humboldt, and Aimé Bonpland; with maps, plans, &c. written Humboldt, Alexander von. 1819-1829. Personal narrative of travels to the equinoctial regions of the New Continent, during the years 1799-1804. By Alexander de Humboldt, and Aimé Bonpland; with maps, plans, &c. written](http://darwin-online.org.uk/converted/scans/1814-29_Humboldt_A597.1-7(online)/1814-29_Humboldt_A597.6a_382.jpg)
Humboldt, Alexander von. 1819-1829. Personal narrative of travels to the equinoctial regions of the New Continent, during the years 1799-1804. By Alexander de Humboldt, and Aimé Bonpland; with maps, plans, &c. written
![The Project Gutenberg eBook of Exploration of the Valley of the Amazon, Part I (of 2), by William Lewis Herndon The Project Gutenberg eBook of Exploration of the Valley of the Amazon, Part I (of 2), by William Lewis Herndon](https://www.gutenberg.org/files/57756/57756-h/images/i-082.jpg)