Columbia subject headings:
Authors, German--19th century--Biography.
Germany--History--Revolution, 1848-1849--Literature and the revolution.
Hopf, Albert, 1813-1885.
Humorists, German--Germany--Biography.
Political satire, German--History--19th century.
Harvard subject headings:
German wit and humor, Pictorial--Exhibitions.
Germany--History--Revolution, 1848-1849--Caricatures and cartoons.
Hopf, Albert, 1813-1885--Exhibitions.
Princeton subject headings: