Strumpell rightly calls our attention to the fact that repetitions of experiences do not occur in dreams. It is true that a dream will make a beginning in that direction, but the next link is wanting; it appears in a different form, or is replaced by something entirely novel. The dream gives us only fragmentary reproductions; this is so far the rule that it permits of a theoretical generalization. Still, there are exceptions in which an episode is repeated in a dream as completely as it can be reproduced by our waking memory.