My own experiments upon the brain have been made for the development and cultivation of science, or the assistance of the sick. I have not had time to undertake the systematic cultivation and change of character by such processes in the young; but when I see how quickly and completely the condition of a patient may be changed, and all cloudy, depressed conditions of the brain removed,--how easily I can produce a state of insanity, idiocy, or pugnacity, and as quickly remove it entirely,--I cannot doubt that a little perseverance in cultivating the nobler qualities until they become by habit a second nature will change even the most depraved, if the process be begun in childhood or youth and steadily maintained, unless there be a great organic deficiency in the brain, which cannot be remedied. The teacher of the future, duly educated in anthropology, will lay aside the rod, and will find in the scientific application of his hands the means of overcoming acquired or even hereditary evils; and special asylums will be established, in which the most degenerate youth may be restored to honor, not by cerebral treatment alone, but by all the appliances of industry, music, religion, and love, which have already reformed so many youthful criminals at Lancaster, Ohio, and given them to society as good citizens. The method of direct operation on the brain, which was introduced by my discovery in 1841, is that with which I am more familiar, but the mesmeric method has long been known, and the modification of this, which might be called the imaginative method, has been made familiar during the last fifty years under the popular name of psychology, and sometimes under the absurd name of electro-biology. This method is simply that of assuming control of the subject when he is in the passive state, and making him believe anything he is told, as, for example, that a handkerchief is a snake, that a piece of money is burning hot, or that he is a king, a hero, an orator, an auctioneer, or anything else suggested by the fancy of the operator, which is at once carried into personation by the subject. This is a familiar, popular exhibition, which never fails to attract and amuse, but has unfortunately not been applied to its philanthropic uses in healing disease and elevating the character. If disease can be overcome by making the subject believe a glass of pure water a powerful restorative medicine, or by believing himself marvellously well and vigorous; or if his vicious or indolent habits can be overcome by making him for a time believe himself a religious saint or an energetic business man,--such experiments should be made a powerful adjunct in education, and in the reformation of criminals; and this application has recently been made in France, which has the honor of leading in this important philanthropy.