"There are certain classes of disease for which hypnotic treatment is highly beneficial. Mental healing in all its various forms, in so far as it is valuable, rests on the principle that body and mind are very closely inter-related through the partly conscious but chiefly unconscious control of the vital functions through the nervous system; and that the state of the mind at any given time, and consequently the state of the body, in so far as we know it at that time, is made up of a relatively small presentation of sensation, and a very large contribution of associations. Hence a very slight suggestion through the senses, by speech, or physical contact, or eradication of fixed images, anxieties, and fears, may introduce a new nucleus around which an entirely new set of associations will cluster; so that through the renewing of the mind the body may come to be transformed." Charles Van Norden, D.D., LL.D., at one time President of Elmira College, tells us in his outline of psychology, _The Psychic Factor_, that "So tremendous is this power of mind over body, that disease may often be cured and ailments caused by a new idea." "A woman [says Rev. Dr. Van Orden] once came to Surgeon-General Hammond with what he considered an incurable disorder. She sighed as she turned to go away disconsolate, saying, 'Ah, if I but had some of the water of Lourdes!'--for she was a devout Catholic. Now it so happened that a friend had brought the doctor a bottle of the genuine water of Lourdes to experiment with. He informed the patient of this, and promised her some provided she would first try a more potent remedy, Aqua Crotonis (New York City aqueduct water). The woman consented, but protesting that this latter could not reach the case. He then gave her a little vial of the real article, but labeled 'Aqua Crotonis.' When this had failed he gave her Croton water, but labeled 'Water of Lourdes.' The result was a complete cure." Prof. William James, of Harvard, in the chapter of his _Principles of Psychology_ treating "the production of movement," quotes many authorities and gives various diagrams illustrating the effects of sensations and emotions upon the pulse, the respiration, the glands, muscles, and other organs and functions of men and animals. The celebrated Prof. Bain is quoted as saying that "according as an impression is accompanied with _feeling_, the aroused currents diffuse themselves over the brain, leading to a general agitation of the moving organs, as well as affecting the viscera." The conclusion of Prof. James is that "Using sweeping terms and ignoring exceptions, we might say that every possible feeling produces a movement, and that every movement is a movement of the entire organism, and of each and all its parts."