I may also construct a collective person for the condensation of the dream in another manner, by uniting the actual features of two or more persons in one dream image. It is in this manner that Dr. M. in my dream was constructed, he bears the name of Dr. M., and speaks and acts as Dr. M. does, but his bodily characteristics and his suffering belong to another person, my eldest brother; a single feature, paleness, is doubly determined, owing to the fact that it is common to both persons. Dr. R. in my dream about my uncle is a similar composite person. But here the dream image is prepared in still another manner. I have not united features peculiar to the one with features of the other, and thereby abridged the remembered image of each by certain features, but I have adopted the method employed by Galton in producing family portraits, by which he projects both pictures upon one another, whereupon the common features stand out in stronger relief, while those which do not coincide neutralize one another and become obscure in the picture. In the dream of my uncle the _blond beard_ stands out in relief, as an emphasized feature, from the physiognomy, which belongs to two persons, and which is therefore blurred; furthermore the beard contains an allusion to my father and to myself, which is made possible by its reference to the fact of growing grey. The construction of collective and composite persons is one of the chief resources of the activity of dream condensation. There will soon be an occasion for treating of this in another connection. The notion “dysentery” in the dream about the injection likewise has a manifold determination, on the one hand because of its paraphasic assonance with diphtheria, and on the other because of its reference to the patient, whom I have sent to the Orient, and whose hysteria has been wrongly recognised. The mention of “propyls” in the dream also proves to be an interesting case of condensation. Not “propyls” but “amyls” were contained in the dream thoughts. One might think that here a simple displacement had occurred in the dream formation. And this is the case, but the displacement serves the purposes of condensation, as is shown by the following supplementary analysis. If I dwell for a moment upon the word “propyls,” its assonance to the word “propylæum” suggests itself to me. But the propylæum is to be found not only in Athens but also in Munich. In the latter city I visited a friend the year before who was seriously ill, and the reference to him becomes unmistakable on account of _trimethylamin_, which follows closely upon _propyls_.