Columbia subject headings:
Harvard subject headings:
Art and science--History.
Humboldt, Alexander von, 1769-1859--Correspondence.
Humboldt, Alexander von, 1769-1859--Relations with artists.
Scientists--Germany--Correspondence.
Princeton subject headings:
Art and science--History.
Humboldt, Alexander von, 1769-1859--Correspondence.
Humboldt, Alexander von, 1769-1859--Relations with artists.
Scientists--Germany--Correspondence.