A BRIEF SURVEY OF THE RESEARCH ON FLES REVEALS THE NEED FOR GREATER STUDY IN MANY AREAS IN ORDER TO FULLY EVALUATE FLES PROGRAMS. SOME FINDINGS INDICATE THAT YOUNG CHILDREN CAN ACQUIRE PRONUNCIATION SKILLS MORE RAPIDLY AND EASILY THAN ADULTS, BUT IN OTHER AREAS OF LANGUAGE STUDY THERE IS A STRONG POSSIBILITY THAT THE TIME SPENT IN STUDY IS A MORE IMPORTANT FACTOR THAN AGE. RESEARCH HAS NOT YET DETERMINED AT WHAT GRADE FLES SHOULD BEGIN, ONLY THAT AN EARLY START WILL ALLOW MORE TOTAL TIME FOR LANGUAGE STUDY. THERE IS A NEED FOR FURTHER STUDY ON (1) INDIVIDUAL DIFFERENCES IN FOREIGN LANGUAGE APTITUDE, (2) LONG-TERM EFFECTS OF FLES ON LATER LANGUAGE STUDY, AND (3) THE EFFECTIVENESS OF DIFFERENT INSTRUCTIONAL TECHNIQUES AND AIDS. THIS ARTICLE IS REPRINTED FROM "THE NATIONAL ELEMENTARY PRINCIPAL," VOLUME 39, NUMBER 6, MAY 1960. (SS)