What is true of tuberculosis and the influence of the will has proved to be still more true, if possible, of pneumonia. Clinical experience with the disease in recent years has not brought to us any remedy that is of special value, nor least of all of specific significance, but it has enabled us to understand how individual must be the treatment of patients suffering from pneumonia. We have recognized above all that mentally disturbing factors which lessen the patient's courage and will to live may prove extremely serious. We hesitate about letting an older person suffering from pneumonia learn any bad news and particularly any announcement of the death of a near relative, above all, a husband or wife. The shock and depression consequent upon any such announcement may {188} prove serious or even fatal. The heart needs all its power to accomplish its difficult task of forcing blood through the limited space left free in the unaffected lung tissue, and anything which lessens that, that is anything which _disheartens_ the patient, to use our expressive English phrase, must be avoided as far as possible. When a man of fifty or beyond, one or more of whose friends has died of pneumonia about his age, comes down with the disease and learns, as he often will in spite of the best directed effort to the contrary, that he is suffering from the affection, if he is seriously disturbed by the knowledge, we realize that it bodes ill for the course of the disease. If a pneumonia patient, especially beyond middle life, early in the case expresses the thought that perhaps this may be the end and clings at all insistently to that idea, the physician is almost sure to feel little confidence of pulling him through the illness. In probably no disease is it more important that the patient's courage should be kept up and that his will should help rather than hamper.