There was brought to a New England neurologist a little girl of ten, suffering from a curious physical abnormality. As long as she was seated, there seemed to be little the matter with her; but the moment she attempted to stand her feet bent under her so that they would not support her weight. When left alone she swayed backward and forward, and then fell on her hands and knees. In addition to this, there was a complete paralysis of the left arm, the child thus being deprived of the use of three of her four limbs.

Questioned by the physician, her mother explained that these muscular troubles had first set in six months before, following an attack of measles, and that her condition had grown progressively worse. This pointed to an organic and incurable malady; and, indeed, the mother was firmly convinced that nothing could be done. But, on making some delicate diagnostic tests, no signs of true organic trouble were to be found; whereas there were some indications that the disability might be wholly functional, the result of hysteria. In verification of his suspicion the physician made a few experiments which proved that the child was extremely suggestible. Turning to her mother, he said:

“You are quite wrong in supposing that your daughter cannot be cured. She is ill, it is true; but her illness is of such a nature that it will quickly respond to the right kind of treatment.”

“But,” protested the mother, incredulous, “she cannot use her legs, she cannot move her arm.”

“No matter. I have something here that will enable her to use her legs and move her arm.”

He took up a large magnet and showed it to the little girl. She watched him with the keenest interest, while he used it to lift several pieces of iron.

“Now look,” said he.

Holding it over his left hand, he slowly raised that hand until it touched the magnet, pretending that it had been drawn up exactly as the pieces of iron had been.

“You see the power of this instrument,” he said, to the wondering child. “It can move your arm, and give strength to your legs and feet, in the very same way.”