I have already given you an example of a combination of forgetfulness with an error, in the case in which someone forgets an appointment, and a second time, with the firm intention of not forgetting it again, appears at an hour which is not the appointed one. A quite analogous case was told me from his own experience by a friend who pursues literary as well as scientific interests. He said: “Some years ago I accepted election to the Council of a certain literary society because I hoped that the society might at some time be useful to me in getting a play of mine produced; and, although not much interested, I attended the meetings regularly every Friday. A few months ago I received an assurance that my play would be produced at a theatre in F. and since then it has invariably happened that I _forget_ to attend the meetings of the society. When I read your writings on this subject, I reproached myself with my meanness in staying away now that these people can no longer be of use to me and determined on no account to forget on the following Friday. I kept reminding myself of my resolution until I carried it out and stood at the door of the meeting-room. To my amazement it was closed and the meeting was already over! I had made a mistake in the day of the week and it was then Saturday!” It would be tempting to collect more of these examples, but I will pass on and, instead, let you glance at those cases in which interpretation has to wait for confirmation in the future. The main condition in these cases is, as we might expect, that the mental situation at the time is unknown or cannot be ascertained. At the moment, therefore, our interpretation is no more than a supposition to which we ourselves would not ascribe too much weight. Later, however, something happens which shows us how well justified our previous interpretation was. I was once the guest of a young married couple and heard the young wife laughingly describe her latest experience, how the day after the return from the honeymoon she had called for her sister and gone shopping with her as in former times, while her husband went to his business. Suddenly she noticed a man on the other side of the street and, nudging her sister, said, “Look, there goes Mr. K.” She had forgotten that this man had been her husband for some weeks. A shudder went over me as I heard the story, but I dared not draw the inference. Several years later the little incident came back to my mind after this marriage had come to a most unhappy end.