What was Boulevard St Michel called peviously?
Postcard of Boulevard St Michel, Paris [Bibliothèque Historique de la Ville de Paris] Perspective view of the Place and Fontaine de Sébastopol, 1876 [Bibliothèque Historique de la Ville de Paris]
From Connaissez-vous Paris? (Do You know Paris?) by Raymond Queneau, present edition published by Editions Gallimard, 2011.