They were by the side of old workings, a very deep abandoned gallery of Gaston-Marie, where, ten years earlier, an explosion of fire-damp had set the seam alight; and it was still burning behind the clay wall which had been built there and was kept constantly repaired, in order to limit the disaster.
On côtoyait d'anciens travaux, une galerie abandonnée de Gaston-Marie, tres profonde, ou un coup de grisou, dix ans plus tôt, avait incendié la veine, qui brulait toujours, derriere le «corroi», le mur d'argile bâti la et réparé continuellement, afin de limiter le désastre.