Walls, Laura Dassow.
The passage to Cosmos : Alexander von Humboldt and the shaping of America / Laura Dassow Walls.
Humboldt, Alexander von, 1769-1859 -- Influence -- United States.
Humboldt, Alexander von, 1769-1859. Kosmos.
Humboldt, Alexander von, 1769-1859 -- Political and social views.
Science -- History -- 19th century.
United States -- Intellectual life -- 19th century.