In the midst of this monotonous life, always beginning over again, an accident had occurred. The stalls in the Guillaume seam had come across a shifting of. the strata, a general disturbance in the layers, which certainly announced that they were approaching a fault; and, in fact, they soon came across this fault which the engineers, in spite of considerable knowledge of the soil, were still ignorant of.
Au milieu de cette vie monotone, sans cesse recommençante de la mine, un accident s'était produit: les chantiers de la veine Guillaume venaient de tomber sur un brouillage, toute une perturbation dans la couche, qui annonçait certainement l'approche d'une faille; et, en effet, on avait bientôt rencontré cette faille, que les ingénieurs, malgré leur grande connaissance du terrain, ignoraient encore.