When the bishop had related what he had seen, the domestics apprehended that his lordship had been dreaming, against which the good man protested, and only told what his eyes had beheld. The story that the bishop had been visited by a ghost soon got well circulated, which greatly "diverted the ungodly, at the good prelate's expense, till finally it reached the ears of the keeper of a mad-house in the diocese, who came and deposed that a female lunatic had escaped from his custody on that night" (in light apparel), who, finding the gates and doors of the palace open, had marched directly to his lordship's chamber. The deponent further stated that the lunatic was _always reading a bundle of papers_. "There are known," says Walpole, "stories of ghosts, solemnly authenticated, less credible; and I hope you will believe this, attested by the father of our own church." MUSICAL GHOSTS. We occasionally _hear_ of this kind, but seldom, if ever, _see_ them. An old lady of Adams, Mass., came to the writer in a state bordering on monomania. She stated that at about _three o'clock_ in the night she would awake and distinctly hear bells ringing at a distance. She would awake her husband, and often compel him to arise and listen "till the poor man was almost out of patience with the annoyance;" not of the bells, for he heard none, but of being continually "wakened because of her whim," as he stated. A brief medical treatment for the disease which caused the vibration of the tympanum dispelled the illusion of bells. THE PIANO-FORTE GHOST. A family residing, three years since, but a few miles out of Boston, used to occasionally, during summer only, hear a note or two of the piano strike at the dead hour of the night. A Catholic servant girl and an excellent cook left their situations in consequence of the ghostly music. In vain the family removed the instrument to another position in the room. The musical sounds would startle them from their midnight slumbers. One thing very remarkable occurred after changing the piano: the sound, which only transpired occasionally, with no regularity as to time, would always begin with the high notes, and end with the lower. Finally, the family--I cannot say why--removed to the city, and the house was sold. The deed of conveyance did not include the ghost, but he remained with the premises, nevertheless. The writer has seen him! "O, what a pretty cat!" exclaimed a child of the new occupant of the haunted house, on discovering the domestic animal which the late possessor had left. "Yes; and she looks so very domestic and knowing, she may stay, if no one comes for her, and you'll have her for a playfellow," replied the mother.