cases, and "inclines to think that fright and the consequent exertion produced a beneficial result."
(d) Abernethy gives a case of a woman who was permanently cured of dropsy by being frightened by a bull, relief coming through the kidneys.
(e) Of the famous metallic tractors of Dr. Perkins, which produced most extraordinary results, attracting the attention of the medical world, the effects of the use of the tractors being attributed to galvanism, and of the production of the same effects by two wooden tractors of nearly the same shape, and painted so as to resemble them in color, it is hardly necessary to say anything. But wooden and metallic were equally efficient, and cured cases of chronic rheumatism in the ankle, knee, wrist, and hip, where the joints were swollen and the patient had been ill for a long time; and even a case of lockjaw of three or four days' standing was cured in fifty minutes, when the physicians had lost all hope.
(f) I have frequently tested this principle. The application of a silver dollar wrapped in silk to ulcerated teeth, where the patient had been suffering for many hours, and in some instances for days, relieved the pain, the patient supposing that it was an infallible remedy. After I had explained that the effect was wholly mental, the magic power of the remedy was gone.
(g) In 1867 a well-known public singer was taken dangerously ill on the evening of his concert, having great nausea and intense headache; two applications of the silver dollar to his forehead entirely relieved him, and he performed a full program with his usual energy. Anything else would have been as effectual as the dollar, which was used merely because it was at hand.
(h) The following case is taken from a pam-
