After stating "the tendency to exaggeration and the infrequency of impartial judgment" in connection with many instances of claimed cures, the above mentioned authority proceeds as follows: "The actual cures, however, are sufficiently numerous and sufficiently striking to need an explanation. These different forms agree in only one point--viz., _the mental state of the patient is one of hope and expectation_. Can states of mind cause or cure disease? Some familiar occurrences seem to justify an affirmative answer. It is well known that certain glands and secretions are markedly affected by emotions. Fright causes the saliva to cease to flow and the perspiration to start. Sorrow causes the lachrymal glands to secrete tears. Happiness favors digestion, unhappiness retards it. Mosso has demonstrated that the bladder is especially sensitive to emotional states. In general, the pleasant emotions produce an opposite physical effect from the unpleasant ones. There are many glands within the body whose action under emotion we cannot observe; but we may reasonably assume that they also are affected by emotional states. Hence, if unpleasant emotions so act upon the glands as to derange the system and cause disease, the pleasant emotions may reasonably be assumed to tend to restore the normal functions. The various forms of faith cure tend strongly to put the patient in a happy frame of mind--a condition favorable to health. However, there are all degrees of faith and wide differences in the way the system responds to the emotional state. One person is slightly affected by a strong emotion; another is strongly affected by a weak emotion. Hence, there must always be a wide difference in the results of faith-cure methods. The diseases most amenable to faith cure are nervous--including many not recognized as nervous, but having a neural condition as their basis--and functional derangements. Organic diseases are not usually cured, though the symptoms are frequently ameliorated. Chronic diseases due to neuro-muscular habit often yield to hypnotic treatment."