“His piano teacher reproaches him for neglecting his piano-playing, and for not practicing the Etudes of Moscheles and Clementi's Gradus ad Parnassum.” In relation to this he remarked that the Gradus is only a stairway, and that the piano itself is only a stairway as it has a scale.

It is correct to say that there is no series of associations which cannot be adapted to the representation of sexual facts. I conclude with the dream of a chemist, a young man, who has been trying to give up his habit of masturbation by replacing it with intercourse with women.

Preliminary statement. — On the day before the dream he had given a student instruction concerning Grignard's reaction, in which magnesium is to be dissolved in absolutely pure ether under the catalytic influence of