After having vaulted three thousand metres of sewer in all quarters of the city, from the Rue Traversière-Saint-Antoine to the Rue de l’Ourcine, after having freed the Carrefour Censier-Mouffetard from inundations of rain by means of the branch of the Arbalète, after having built the Saint-Georges sewer, on rock and concrete in the fluid sands, after having directed the formidable lowering of the flooring of the vault timber in the Notre-Dame-de-Nazareth branch, Duleau the engineer died. There are no bulletins for such acts of bravery as these, which are more useful, nevertheless, than the brutal slaughter of the field of battle.