We might think that it is quite impossible for any such a deception as this supposed renewal of youth to be practiced in our more enlightened day when popular education is so widely diffused. We must not forget, however, that the newspapers bring us evidence every month of some old person who is quite sure that something that was being done for him was, if not renewing his youth, at least giving him back much of his pristine vigor, healing his aches and pains, and enabling him to take up his work once more. In treating the ravages of old age, which would seem to be altogether beyond any influence of psychotherapy, some of the most striking results are obtained. New therapeutic methods for the old come into vogue every year. As they grow older, {48} people become discouraged and so do not exert even the natural energy that they have for the maintenance of health and the keeping up of strength. Their discouragement keeps them from exercising enough, and this decreases appetite and sleep, and as a consequence there are many disturbances of function. All of this disappears as soon as they feel encouraged. Brown Sequard and his extract of testicular tissues is a typical example of how strong suggestion may influence the old and make them think that they are renewing their vigor and strength, and even their youth. Perkins, Prince of Quacks.--Shortly after Cagliostro an American succeeded in using a very simple idea to gain world fame and at the same time to make an immense amount of money. He was a Connecticut Yankee with the typical name, Elisha Perkins. Dr. Perkins must have been born under a lucky star; at least he lived in fortunate circumstances for his purposes. Galvani's discovery of the twitchings that occur in the frog's legs when a nerve-muscle preparation or its equivalent was touched by metals in contact, had aroused world-wide discussion as to the place of electricity and magnetism in biology. Volta's brilliant experiments, which led to the invention of the Voltaic Pile, still further increased men's interest in this subject. It was then that Dr. Perkins came to exploit these electrical and magnetic ideas in medicine by means of a very simple invention. It was indeed the simplicity of his apparatus that made its appeal even more wide than would otherwise have been the case, and, be it said, left a larger measure of profit for the inventor. Oliver Wendell Holmes in his "Medical Essays" [Footnote 4] has told the story of what may be called the rise and fall of tractoration. Any physician who wants to appreciate the real significance of cured cases should read Holmes' essay. We quote: [Footnote 4: Houghton, Mifflin Co., Boston.]