The visit to the subways of Paris lasted for seven years,--from 1805 to 1812. While going along, Bruneseau designed, directed, and carried out considerable operations. In 1808 he lowered the Ponceau sewer, and everywhere pushing out new lines, carried the sewer in 1809 under the Rue St. Denis to the Fountain of the Innocents; in 1810 under the Rue Froidmanteau and the Salpêtrière; in 1811 under the Rue Neuve des Petits Pères, under the Rue du Mail, the Rue de l'Écharpe and the Place Royal; in 1812 under the Rue de la Paix and the Chaussée d'Antin. At the same time he disinfected and cleansed the entire network, and in the second year called his son-in-law Nargaud to his assistance. It is thus that at the beginning of this century the old society flushed its subway and performed the toilette of its sewer. It was so much cleaned at any rate. Winding, cracked, unpaved, full of pits, broken by strange elbows, ascending and descending illogically, fetid, savage, ferocious, submerged in darkness, with cicatrices on its stones and scars on its walls, and grewsome,--such was the old sewer of Paris, retrospectively regarded. Ramifications in all directions, crossings of trenches, branches, dials and stars as in saps, blind guts and alleys, arches covered with saltpetre, infected pits, scabby exudations on the walls, drops falling from the roof, and darkness, nothing equalled the horror of this old excremental crypt,--the digestive apparatus of Babylon, a den, a trench, a gulf pierced with streets, a Titanic mole-hill, in which the mind fancies that it sees crawling through the shadow, amid the ordure which had been splendor, that enormous blind mole, the Past. Such, we repeat, was the sewer of the olden time. CHAPTER V. PRESENT PROGRESS.