IN THE SUMMER OF 1966, THE MODERN LANGUAGE ASSOCIATION OF AMERICA CONDUCTED A REVIEW OF THE USE AND EFFECTIVENESS OF EXPERIMENTAL CURRICULUM UNITS DISTRIBUTED BY THE ENGLISH INSTITUTE MATERIALS CENTER (EIMC) TO NATIONAL DEFENSE EDUCATION ACT (NDEA) SUMMER INSTITUTES IN ENGLISH AND CLOSELY RELATED AREAS. THE EVALUATORS VISITED 27 INSTITUTES, REPRESENTING A CROSS-SECTION THROUGHOUT THE UNITED STATES, WHERE WORKSHOPS AND CLASSES WERE OBSERVED AND DISCUSSIONS WERE HELD WITH INSTITUTE DIRECTORS, STAFFS, AND PARTICIPANTS. REPORTS ON VISITS AND QUESTIONNAIRES SENT TO EACH INSTITUTE PARTICIPATING IN EIMC SHOWED THAT EIMC PERFORMED A VALUABLE SERVICE TO NDEA SUMMER INSTITUTES IN ENGLISH, BUT THAT EIMC MATERIALS GENERALLY WERE NOT WELL USED. BECAUSE THEY FREQUENTLY ARRIVED TOO LATE FOR CAREFUL STUDY BY INSTITUTE DIRECTORS AND STAFF, THE MATERIALS WERE NOT INCORPORATED EXTENSIVELY INTO INSTITUTE PROGRAMS BUT WERE UTILIZED ONLY AS REFERENCE MATERIAL OR WERE MERELY GIVEN TO PARTICIPANTS WITHOUT DEMONSTRATION. WHEN EXPOSED TO EIMC MATERIALS THROUGH DEMONSTRATIONS AND WORKSHOPS, HOWEVER, PARTICIPANTS RESPONDED ENTHUSIASTICALLY. THE EFFECTIVENESS OF EIMC MATERIALS COULD BE IMPROVED BY ADDING NEW UNITS AND BY SYSTEMATICALLY INTRODUCING CURRICULUM MATERIALS TO INSTITUTE DIRECTORS, WITH SPECIFIC SUGGESTIONS ON THEIR SELECTION AND UTILIZATION. IN ADDITION, THE ESTABLISHMENT OF CENTERS SIMILAR TO EIMC BY OTHER DISCIPLINES SHOULD BE GIVEN SERIOUS CONSIDERATION. (THE OPERATION OF AN INSTITUTE MATERIALS CENTER IS EXPLAINED IN THE APPENDIX.) (DL)