Hypnotism has been found by some of its students, especially on the Continent, to have so many possibilities in its connection with medicine, and so much undoubted influence in connection with the mind, that it has naturally fallen to its lot to be employed for trial, at any rate, in the therapeutics of some of the mental maladies. The dominance of one human being over another, which is, for the moment at least, gained by its influence, seems in some ways more appropriate to the guidance and help of the insane by the sane, than of the sane by their equals. But its possibilities and uses are not questions that can be determined by any à priori reasoning as to whether such guidance may be for the advantage of those who are led in certain circumstances of difficulty, such as insanity, but rather by the facts and results of its application.