In a brief editorial preface to this second volume of Freud's Collected Papers, Dr. Jones has given prospective readers a serviceable degree of orientation as to the nature of the contributions and at the same time has anticipated whatever might be said by way of comment on their selection. The first and third volumes, devoted respectively to early papers and to detailed case-histories, took shape, as it were, spontaneously; similarly the fourth volume, on metapsychology and applied psycho-analysis, comprises naturally the theoretical and non-clinical amongst Freud's shorter contributions to the science. A grouping of this sort was indeed the only practicable