"The position of the younger sister was then changed to a sitting posture, with lower limbs extended on the sofa, the elder sister sitting, in the customary way, at the other extremity of the sofa. The 'Spirits' did not choose to signify their presence under these circumstances, although repeatedly requested so to do. The latter experiment went to confirm the belief that the younger sister alone produced the rapping. These experiments were continued until the females themselves admitted that it was useless to continue any longer at that time, with any expectation of _manifestations_ being made. "In resuming the usual position on the sofa, the feet resting on the floor, the _knockings_ soon began to be heard. It was then suggested that some other experiments be made. This was assented to, notwithstanding the first was to our minds amply conclusive. The experiment selected was, that the knees of the two females be firmly grasped, with the hands so applied that any lateral movement of the bones would be perceptible to the touch. The pressure was made through the dress. It was not expected to prevent the sounds, but to ascertain if they proceeded from the knee-joint. It is obvious that this experiment was far less demonstrative to an observer than the first, because, if the bones were distinctly felt to move, the only evidence of this fact would be the testimony of those whose hands were in contact with them. The hands were kept in apposition for several minutes at a time, and the experiments repeated frequently, for the space of half an hour or more, with negative results; that is to say, there were plenty of _raps_ when the knees were not held, and none when the hands were applied, save once; as the pressure was intentionally somewhat relaxed (Dr. Lee being the holder) two or three faint single _raps_ were heard, and Dr. Lee immediately averred that the motion of the bone was plainly perceptible to him. The experiment of seizing the knees as quickly as possible, when the knocking first commenced, was tried several times, but always with the effect of putting an immediate _quietus_ upon the _demonstrations_. "The proposition to bandage the knees was discussed. The experiment was objected to, on the part of the friends of the females, unless we could concede that it should be a conclusive test experiment. We were not prepared with appliances to render the limb immovable, and therefore declined to have it considered such a test.