CHAPTER XI. FANCY AND REALITY “Have you ever seen the moon?” asked a professor, ironically, of one of his pupils. “No, sir!” replied the pupil, still more ironically, “but I must say I have heard it spoken of.” In one sense, the pupil’s witty answer might be given by a large majority of sublunary beings. How many people have heard speak of the moon who have never seen it—at least through a glass or a telescope! How many have never examined the map of their satellite! In looking at a selenographic map, one peculiarity strikes us. Contrary to the arrangement