It was my intention to devote a long and distinct paragraph to each of four other subjects, that appear to me no less adapted for the consideration of waking dreamers. These are, respectively, Ghosts, Labyrinths, Regattas, and the Eleven Thousand Virgins of Cologne. But it is well to leave something to the reader's perspicacity and inventive powers. Indeed, why should he not fancy--dream is the more appropriate term--that he himself has undertaken to complete these special paragraphs? Let his imaginary pen glide, swift and effortless, over his imaginary foolscap. Ten to one, he will fill in and elaborate my outlines, far better than I could work them out myself. For instance, I do but mention Ghosts; he might summon to his presence, and bid troop before him, hosts upon hosts of his friends or relatives, or of his chosen heroes and heroines in romance and history. He might clothe them in white or in grey; he might attire them in their ordinary habiliments; in short, he might parade them according to his own taste, without reference to mine, which whould be a clear point in his favour. Accidentally, I might call up some spirit that had vexed and thwarted him through life, for no man whose experience is worth remembering hath not had his enemies, hidden or revealed, and very few are the men, fewer the women, who have never disposed of a rival. My reader of the moment, invested with my functions, will of course evoke none but his familiars, the well-bred and well-behaved. Let me be grateful accordingly that, by transferring the responsibility to him, I escape the chance of bringing forward, innocently and inopportunely, some social Banquo. And so I pass on, with one single word of caution to my substitute in completing this paragraph: let him not convert his pen into a Pre-Raphaelitish paint-brush. Airy beings must be rather hinted than described. The realism of anatomical plates, applied to them, would spoil the reader's dream _in toto_, and wake him up perhaps more hopelessly than ever.--As to Labyrinths, the course is obvious. Take a dozen of these quaint contrivances, and place them side by side, as Paulsen or Paul Morphy may place the sundry chess-boards whereat he is to play, simultaneously and blindfolded, an equivalent number of games. Pop, over the hedges and into the very core of each one, any personage against whom you have a grudge, or any one of the Ghosts just convened that may have been troublesome; and then challenge the incarcerated individuals to find their way out of limbo, by the gravelled pathways. Should one of the whole number emerge, through extraordinary good luck, quietly tip him back again over the hedge, or defy him to retrace his steps and regain the centre. You may enlarge this suggestion, I think, into a paragraph reasonably long.--The same with Regattas. I am almost sorry that I gave up to you so felicitous a topic; for all ages and all waters may be laid under contribution.