Humboldt, Alexander von,  1769-1859 <br/><br/>
Reise in die Aequinoctial-Gegenden des neuen Continents. Band 1.  [electronic resource] / 
Alexander von Humboldt 
 -  Project Gutenberg,  2007 
 - Project Gutenberg  22492 .
<br/><br/> Public domain in the USA. 
<br/><br/>Electronic text 
<br/><br/><label>Subjects--Index Terms: </label>South America -- History Geology -- South America Natural history -- South America South America -- Description and travel 
<br/><br/><label>LC Class. No.: </label>F2301 F2201 QH QE G