Columbia subject headings:
Harvard subject headings:
France--History--Second Empire, 1852-1870.
France--History--Third Republic, 1870-1940.
Industrialists--France--Biography
Journalists--France--Biography
Socialists--France--Biography
Vaughan, Ernest, 1841-1929.
Princeton subject headings:
France--History--Second Empire, 1852-1870.
France--History--Third Republic, 1870-1940.
Industrialists--France--Biography.
Journalists--France--Biography.
Socialists--France--Biography.