Columbia subject headings:
France--History, Naval.
Ocean and civilization.
Port cities--France--History.
Shipping--France--History.
Harvard subject headings:
France--Commerce--History.
France--History, Naval
France--Religious life and customs.
Ocean and civilization.
Port cities--France--History.
Shipping--France--History.
Princeton subject headings:
France--History, Naval.
Ocean and civilization.
Port cities--France--History.
Shipping--France--History.