"The next evening it commenced at nightfall, when it was ascertained to be mysteriously connected with the movements of a servant girl in the family--a white girl, about fourteen years of age. While passing a window, on the stairs, for example, a _sudden jar_, accompanied with an _explosive sound, broke a pane of glass_, the girl at the same time being seized with a violent spasm. This, of course, very much alarmed her; and the physician, Dr. Drake, was sent for, who came and bled her. The bleeding, however, produced no apparent effect. The noise still continued, as before, at intervals, wherever the girl went, each sound producing more or less of a spasm; and the physician, with all the family, remained up during the night. At daylight the _thumping_ ceased again. In the evening the same thing was repeated, commencing a little earlier than before; and so every evening since, continuing each night until morning, and commencing each night a little earlier than before, until yesterday, when the thumping began about twelve o'clock at noon. The circumstances were soon generally spread through the neighborhood, and produced so much excitement that the house was filled, and surrounded from sunrise to sunset, for nearly a week. Every imaginable means were resorted to, in order to unravel the phenomenon. At one time the girl would be removed from one apartment to another, but without effect. Wherever she was placed, at certain intervals, the thumping would be heard in the room. She was taken to a neighboring house. The same result followed. When carried out of doors, however, no noise was heard. Dr. Drake, who was constant in his attendance during the whole period, occasionally aided by other scientific observers, was with us last evening for two hours, when we were politely allowed a variety of experiments with the girl, in addition to those heretofore tried, to satisfy ourselves that there is no imposition in the case, and, if possible, to discover the secret agent of the mystery. The girl was in an upper room, with a part of the family, when we reached the house. The noise then resembled that which would be produced by a person violently thumping the upper floor with the head of an axe, five or six times in succession, jarring the house, ceasing a few minutes, and then resuming as before. We were soon introduced into the apartment, and permitted to observe for ourselves. The girl appeared to be in perfect health, cheerful, and free from the spasms felt at first, and entirely relieved from every thing like the fear or apprehension which she manifested for some days. The invisible noise, however, continued to occur as before, though somewhat diminished in frequency, while we were in the room. In order to ascertain more satisfactorily that she did not produce it voluntarily, among other experiments we placed her on a chair on a blanket in the centre of the room, bandaged the chair with a