The Bibliography of Research Studies in Education for the school year September 1937 through August 1938 lists 3,890 theses and studies reported by 159 institutions, several of which had not reported previously. The list, which is the twelfth in the series, includes 519 doctors' dissertations, 3,146 masters' theses, and 225 studies reported as faculty research. Colleges and universities granting graduate degrees in education, institutions carrying on graduate work in music and theology, and some institutions in which only members of the faculty conduct research in education have reported the studies listed. The entries give the author, title, degree, and date when the thesis was completed, the name of the institution granting the degree, number of pages, and a brief descriptive note. This bulletin contains the following: (1) Foreword; (2) Introductory note; (3) Education--history; (4) Educational biography; (5) Current educational conditions; (6) Education--theories and principles; (7) Special methods of instruction and organization; (8) Psychology--educational; (9) Child Study; (10) Tests and testing; (11) Research, educational; (12) Curriculum studies; (13) Preschool education; (14) Elementary education, including kindergarten; (15) Secondary education; (16) Higher education; (17) Adult education; (18) Teacher training; (19) Teachers--status; (20) College professors and instructors; (21) Administration of schools; (22) School management; (23) School buildings and equipment; (24) Sociology, educational; (25) Racial groups, education; (26) Exceptional groups; and (27) Libraries. Indexes of authors, subjects, and institutions and organizations are included. [Prepared in the Library Division of the Office of Education. Best copy available has been provided.]