condition which is not true of the real source of the dream — the impression must be a recent one, everything arising from the day of the dream.

I cannot leave the question of dream displacement without the consideration of a remarkable process in the formation of dreams in which condensation and displacement work together towards one end. In condensation we have already considered the case where two conceptions in the dream having something in common, some point of contact, are replaced in the dream content by a mixed image, where the distinct germ corresponds to what is common, and the indistinct secondary modifications to what is distinctive. If displacement is added to condensation, there is no formation of a mixed image, but a common mean which bears the same relationship to the individual elements as does the