We have not room to mention all the facts in her case; but will add a few of the most remarkable. "She was very susceptible to _electrical influences_, and, what is almost incredible, _she had a preternatural feeling_ or _consciousness of human writing_. Various minerals seemed to have a specific effect, when brought in contact with her. _Glass and rock crystal_ had a powerful effect in waking her from the somnambulic state, or in exciting the force within her organism. This fact, and others of this character in abundance, point to the peculiar tendency of this force, in some cases of disease, to act outwardly from the nerve centres upon glass ware, window glass, &c. "We have known a child, eight years old," says Mr. Rogers, "who seldom, at one period, took hold of a glass dish without its soon bursting to pieces." In the case of Frederica, a rock crystal, placed on the pit of her stomach, and allowed to remain there for some time, would produce a deep state of catalepsy. She was affected in the same manner by silicious sand and gravel, or even by standing some time near a glass window. If she chanced to seat herself on a sandstone beach, she was apt to become cataleptic; and once, having been for some time missed, she was at length found at the top of the house, seated on a heap of sand, so rigid, that she was unable to move away from it. Whenever she was placed in a bath by her medical attendants, it was with a great deal of labor they could immerse her body beneath the surface. Her specific gravity seemed to be more like cork, or a bladder of air, than that of muscle, nerve, and bone. Something seemed to pervade her body, or to act upon it, so entirely opposite to the centripetal action of the earth, as to counteract this law of force in the most marked manner. This fact suggested to Dr. Kerner a curious experiment, which resulted in the development of another important phenomenon. He had concluded, that as all these phenomena had taken place more or less in conjunction with those usually termed _magnetic_ or _mesmeric_, there might be some relation of the forces in both, or indeed they might be identical. To test this matter, he at one time placed his fingers against hers, when he found at once there existed a mutual attraction, as between two magnets; and now, by extending his hand upward, _he raised her clear from the ground; thus she was suspended, as a magnet suspends a piece of iron_, or _another magnet, simply by a polar force_. This was repeated several times, and afterwards his wife did quite the same thing."