Columbia subject headings:
Humboldt, Alexander von, 1769-1859--Exhibitions.
Naturalists--Exhibitions.
Scientific expeditions--Latin America--Exhibitions.
Harvard subject headings:
Humboldt, Alexander von, 1769-1859--Exhibitions.
Naturalists--Exhibitions.
Scientific expeditions--Latin America--Exhibitions.
Princeton subject headings:
Explorers--Germany--Exhibitions.
Humboldt, Alexander von, 1769-1859--Exhibitions.
Naturalists--Germany--Exhibitions.
Scientists--Germany--Exhibitions.