Columbia subject headings:
France--Intellectual life--19th century.
France--Intellectual life--20th century.
Kahn, Gustave, 1859-1936--Criticism and interpretation.
Harvard subject headings:
Kahn, Gustave, 1859-1936--Criticism and interpretation.
Princeton subject headings:
Kahn, Gustave, 1859-1936--Criticism and interpretation.