Columbia subject headings:
Harvard subject headings:
Police--France--History
Prostitution--France--History--19th century.
Prostitution--France--History--20th century.
Sex and law--France.
Vice control--France--History.
Princeton subject headings:
France--History--Third Republic, 1870-1940--Moral conditions.
France--History--Third Republic, 1870-1940--Social policy.