In this bibliography the titles are classified in the same way as in the one of last year, except that we have added two new sections, one on rating scales and one on experiments which, though quantitative, do not involve tests. In addition to the titles of the year 1926 we have added a few that were omitted from the last report. General discussions are omitted unless they refer specifically to measurements or measuring techniques.A. Summaries. Summaries of special phases or parts of the field have been made by Brandenburg ( 14) on character analysis by means of certain structural measurements; by Cleeton ( 26) on originality; by Clara Chassell Cooper (27) on habit formation in character; by Dodge (33,34) on inhibition; by Yoakum and Manson (149) on self-ratings; by Barr (5) on measurement in civics; by Bingham (7) on personality traits pertaining to vocations; by Bingham and Freyd (8) on personality traits in industry. Wider ranges of titles are given in summaries by Haggerty (55) on scientific methods in character studies; by Leta S. Hollingworth (63) on character, temperament and interests of gifted children. Viteles (137) has a summary of psychology in industry; von Bracken (13) lists 120 titles, mostly German, on experimental techniques in studying character. The Committee on Character Education of the National Education Association (23) lists 153 titles on character study. Summaries adhering more rigidly to measurements are by May and Hartshorne (91), Watson (140), Whaley (146), Freeman (45) and Allport (3). A very complete bibliography including 1,364 titles and covering almost everything in the field is Manson's (89). B. Batteries Including Various Assemblages of Tests Intended to Measure More Than a Single Trait. Moss et al. (97,98,99) have produced a social intelligence test composed of six tests: memory for names and faces; judgment of