"One of them ran directly away from our starting-point; the other almost certainly returned to it. Since it was our purpose to get away from our starting-point, M. Longuet pointed to the first. "'I was sure of it!' I exclaimed. 'Are you quite ignorant of the experimental method? The experimental method in the depths of the Catacombs has demonstrated for centuries that every individual who believes that he is returning to his starting-point (at the entrance to the Catacombs) is moving away from it. Therefore the logical thing to do to get away from one's starting-point is necessarily to take the road which seems to bring you back to it!' "We turned down the passage by which we appeared to be retracing our steps. In that way we were sure that we were not journeying in vain. "My two stories had carried us over another mile; then M. Longuet said: 'I must really have my supper.' "We had our supper, an ounce of ham each. There was some difficulty in judging how much an ounce was; but we did the best we could. He instructed me in the method of eating one's food discovered by M. Fletcher of the United States. We divided either ounce into four mouthfuls, not that they were by any means mouthfuls; and we chewed each patiently till we had extracted from it the last vestige of flavour. I could well believe him when he assured me that in this way we obtained from it the whole of the nourishment it contained. For my part, I should have been delighted to extract the last vestige of flavour from fifty more such mouthfuls. "After this meagre, but doubtless exceedingly nourishing supper, we continued our journey. We went another four miles, when I confessed that I began to feel tired. I was somewhat surprised to find a manufacturer of rubber stamps, a sedentary pursuit, like M. Longuet to be endowed with such untiring vigour. On learning from my watch, which he still carried, because he said he found it a comfort to carry somebody else's watch, that it was eleven o'clock, I suggested that we should go to sleep. "His fixed idea, that we should find an exit from the Catacombs, led him to display some reluctance. But I pointed out to him the extreme improbability of finding an exit in the first twenty miles of three hundred and ten; and we composed ourselves to rest. CHAPTER XXVI M. LONGUET FISHES IN THE CATACOMBS "We awoke the next morning with the appetites of youth. In the middle of our exiguous breakfast it occurred to me that we were behaving in an extremely old-fashioned way. The heroes of Romance invariably divide their bar of chocolate into a number of pieces. We, with our ham, were showing ourselves as commonplace as they. I imparted these reflections to M. Longuet, and suggested that instead of making our hundred and fifty-eight ounces of ham last for twenty days, we should eat ten ounces each a day, and be content to let them last eight. "M. Longuet objected firmly. He said: