We have discussed both the psychological theory and the practical work of psychotherapy in a systematic order without any reference to personal chance experience. After studying the fundamental principles, we have sketched the whole field of disturbances in which psychotherapeutic influence might be possible and all the methods available. It seems natural that our next step should be an illustrating of such work by a number of typical cases. Here it seems advisable to leave the track of an objective system and to turn to the record of personal observation. As this is not a handbook for the physician, dealing with the special forms of disease, we emphasized before that we avoid even any attempt in such a direction because it would have to introduce not only the questions of diagnosis, but above all the highly important questions of treatment by physical agencies. We saw that for us nothing else can be desirable, but to show the way in which the various symptoms which suggest mental treatment occur, and how they yield to the psychical methods. We had also agreed beforehand that for a first survey we might separate the mental from the bodily symptoms and group the mental ones with reference to the predominance of ideational, emotional, and volitional factors. And finally it may be said that we abstain from everything which is exceptional or even unusual, and confine ourselves to the routine observations with which the psychotherapist comes in contact every day and the simplest country physician surely every week. Thus I turn from systematic objectivity to my unsystematic reminiscences of many years. Of course, they abound with eccentric abnormities and startling phenomena. As I have devoted myself to psychotherapeutics, always and only from scientific interest, as a part of my laboratory studies and therefore have refused to spend any time on cases which offered no special psychological interest to me, the striking and sensational cases have prevailed in my practice even to an unusual degree. Yet they are unessential for our purposes here, the more as their interest lies mostly in the complex structure of the mental state while the curative features are in the background. Our purpose of demonstrating practical cases as they occur in every village, and as they ought to be understood and treated by every doctor, thus rules out just those experiences which would be prominent in a theoretical study of abnormal psychology. We want to select only simple commonplace cases. Only those who have not learned to see are unaware that such cases are everywhere about them.