Title: Humbolt's travels and discoveries in South America Year: 1846 (1840s)
Authors: Alexander von Humboldt, 1769-1859
Source book page: https://archive.org/stream/humboltstravelsd00humb/humboltstravelsd00humb#page/n140/mode/1up
Source: https://commons.wikimedia.org/wiki/File:Humbolt%27s_travels_and_discoveries_in_South_America_(1846)_(14779997072).jpg
