As I had taken care to keep an exact account of our manoeuvres with the rope, which I knew that we had repeated fourteen times, each descent occupying half an hour, the conclusion was easy that we had been seven hours, plus fourteen quarters of rest, making ten hours and a half.
Comme j'avais eu soin de noter exactement nos manoeuvres de corde, je pus me rendre un compte exact de la profondeur atteinte et du temps écoulé. Nous avions alors répété quatorze fois cette manoeuvre qui durait une demi-heure.