Columbia subject headings:
Art museum visitors--Germany--History--18th century.
Art museum visitors--Germany--History--19th century.
Art museums--Educational aspects--Germany--History--18th century.
Art museums--Educational aspects--Germany--History--19th century.
Harvard subject headings:
Art museum visitors--Germany--History--18th century.
Art museum visitors--Germany--History--19th century.
Art museums--Environmental aspects--Germany--History--18th century.
Art museums--Environmental aspects--Germany--History--19th century.
Art museums--Germany--History.
Museum visitors--Germany.
Painting--Germany--History.
Princeton subject headings: