Nobody will use other people's experience, nor has any of his own till it is too late to use it. * * * * * Two lovers to plan the building of a pleasure-house on a certain spot of ground, but various seeming accidents prevent it. Once they find a group of miserable children there; once it is the scene where crime is plotted; at last the dead body of one of the lovers or of a dear friend is found there; and instead of a pleasure-house, they build a marble tomb. The moral,--that there is no place on earth fit for the site of a pleasure-house, because there is no spot that may not have been saddened by human grief, stained by crime, or hallowed by death. It might be three friends who plan it, instead of two lovers; and the dearest one dies. * * * * * Comfort for childless people. A married couple with ten children have been the means of bringing about ten funerals. * * * * * A blind man, on a dark nights, carried a torch, in order that people might see him and not run against him, and direct him how to avoid dangers. * * * * * To picture a child's (one of four or five years old) reminiscences at sunset of a long summer's day,--his first awakening, his studies, his sports, his little fits of passion, perhaps a whipping, etc. * * * * * The blind man's walk. * * * * * To picture a virtuous family, the different members examples of virtuous dispositions in their way; then introduce a vicious person, and trace out the relations that arise between him and them, and the manner in which all are affected. * * * * * A man to flatter himself with the idea that he would not be guilty of some certain wickedness,--as, for instance, to yield to the personal temptations of the Devil,--yet to find, ultimately, that he was at that very time committing that same wickedness. * * * * * What would a man do, if he were compelled to live always in the sultry heat of society, and could never bathe himself in cool solitude? * * * * * A girl's lover to be slain and buried in her flower-garden, and the earth levelled over him. That particular spot, which she happens to plant with some peculiar variety of flowers, produces them of admirable splendor, beauty, and perfume; and she delights, with an indescribable impulse, to wear them in her bosom, and scent her chamber with them. Thus the classic fantasy would be realized, of dead people transformed to flowers. * * * * * Objects seen by a magic-lantern reversed. A street, or other location, might be presented, where there would be opportunity to bring forward all objects of worldly interest, and thus much pleasant satire might be the result. CASTLES IN THE AIR. FROM AN UNPUBLISHED POEM.