Post Corda LapidesAfter having sketched its moral face, it will not prove unprofitable to point out, in a few words, its material configuration. The reader already has some idea of it. The convent of the Petit-Picpus-Sainte-Antoine filled almost the whole of the vast trapezium which resulted from the intersection of the Rue Polonceau, the Rue Droit-Mur, the Rue Petit-Picpus, and the unused lane, called Rue Aumarais on old plans. These four streets surrounded this trapezium like a moat. The convent was composed of several buildings and a garden. The principal building, taken in its entirety, was a juxtaposition of hybrid constructions which, viewed from a bird's-eye view, outlined, with considerable exactness, a gibbet laid flat on the ground. The main arm of the gibbet occupied the whole