[*] It should be stated as possibly bearing on the interpretation of the dreams recorded by the author, who is well known to me, that she is the subject of an intense and unusual obsession of hatred of an obtrusively pathological character against a relative. The psycho-pathology of the obsession, of which I have an intimate knowledge, has not been determined. A reasonable interpretation is that the main etiological factor is jealousy. She has undergone prolonged psychoanalytic treatment by a skilled psycho-analyst without improvement of the obsession and without revealing a satisfactory explanation of its pathology. To what extent the contents of the dreams have been determined or coloured by culture acquired by this treatment and by the study of Freudian doctrines is also a question deserving of consideration.--Editor. The Contribution of a Woman IT is an easy matter to accept upon authority a given scientific theory and bring to its support certain selected evidence, but quite another to carefully observe and report phenomena, inspired, influenced and guided indeed by the scientific-theory but drawing conclusions no wider or deeper than individual insight warrants. Scientific knowledge advances not by ready acceptance of theories but by original observation and experiment and the following study of dreams is offered as fulfilling in some degree the latter requirement. While there is a certain familiarity on the part of the writer with the general theory advanced by Freud and with his principles of interpretation, there is no acquaintance at first hand with his Die Traumdeutung, the reading of which has been postponed lest there be excess of influence. No apology is offered for this invasion of the domain of psychology by a layman. The laboratory of the mind is open to all and he who has missed conventional training may yet chance upon valuable facts and their interpretation. Neither is apology offered for the intimate nature of the data reported. Belonging as dreams do to the most personal and private life of the individual it is nevertheless true that continued and careful study of this form of mentation insensibly alters one's attitude so that at length the dream appears as a fact of nature, impersonal and objective.