Professor Maedler sent in his card, and a letter of introduction from his friend at Gröningen, and was at once admitted. He had formed an ideal picture of the Selenographic lady, tall, worn with night watching, with an arched brow, large, clear eyes. He found her a fat little woman, with a face as round and as flat as that of the moon, not by any means pale, but red as the moon in a fog. The lady was delighted to make the acquaintance of so renowned an astronomer. She made him pretty speeches about his map, at the same time letting him understand that a map was all very well, but she knew of something better. Then she launched out into a criticism of his pamphlets on Mars and Saturn, on which, as it happened, he was then sitting. He had put a crumpled copy in each of his tail-coat pockets for an offering, and was now doubly crumpling them. Then she asked his opinion about the revolution and orbit of Biela's comet, which had been seen the preceding year. Next she carried him to Hencke's recently discovered planet, Astræa; after that she dashed away, away with him to the nebulæ, and sought to resolve them with his aid. Then down they whirled together through space to the sun, and the luminous red protuberances observable at an eclipse. Another step, and they were plunging down to earth, had reached it in safety, and were discussing Lord Rosse's recently erected telescope. It was like Dante and Beatrix, with this difference, that Maedler was not a poet, and Frau Witte was a married woman. The Professor was uneasy. Charming as is a telescope, delightful as is the sun, fascinating as Astræa may be, still, the moon, the moon was what he had come to discuss, and wax moon what he had come to see. So he exercised all his skill, and with great dialectic ability conducted his Beatrix away on another round. They gave the fixed stars a wide berth, dived in and out among the circling planets and planetoids without encountering one, avoided the comets, kept their feet off nebulous matter, and at last he planted his companion firmly on the moon, and when there, there he held her. To her words of commendation of his lunar map, he replied by expressing his astonishment at her knowledge of the several craters and so-called seas. Presently Frau Witte rose with a smile, and said, "Herr Professor, I may, perhaps, be allowed to exhibit a trifle on which I have been engaged for many years:--an independent work that I have compared with, but not copied from, your excellent selenic map." The doctor's heart fluttered; his eyes brightened; a hectic flush came into his cheeks. Frau Witte took a key and led the way to her study, where she threw open a mahogany cupboard, and exposed to view something very much like a meat cover. This also she removed, it was composed of the finest silk stretched on a frame, and exposed to view--the wax moon.