Columbia subject headings:
Germany--Intellectual life--19th century.
Germany--Intellectual life--20th century.
Germany--Social life and customs--19th century.
Germany--Social life and customs--20th century.
Mittwochs-Gesellschaft.
Politics and culture--Germany--History--19th century.
Harvard subject headings:
Germany--Intellectual life--19th century.
Germany--Intellectual life--20th century.
Mittwochs-Gesellschaft.
Princeton subject headings:
Germany--Intellectual life--19th century.
Germany--Intellectual life--20th century.
Germany--Social life and customs--19th century.
Germany--Social life and customs--20th century.
Mittwochs-Gesellschaft.
Politics and culture--Germany--History--19th century.