Parfois il passait la journée dans le laboratoire de chimie, parfois dans la salle de dissection, ou bien encore il faisait de longues promenades dont l’objectif semblait toujours etre les quartiers les plus misérables de la ville.
It was rare for him to be up after ten at night, and he had invariably breakfasted and gone out before I rose in the morning. Sometimes he spent his day at the chemical laboratory, sometimes in the dissecting-rooms, and occasionally in long walks, which appeared to take him into the lowest portions of the City.