This report on the 1960 National Defense Education Act Summer Language Institutes for elementary and secondary school teachers is the second such evaluation prepared under the direction of Dr. Stephen A. Freeman. Descriptions and general objectives of the Language Development Program in the 37 NDEA Institutes for some 2,000 teachers are reviewed as well as evaluation procedures used in the report. Discussion of advanced-level and second-stage Institutes underscores the problem of too great a diversity of linguistic achievement in participant background; program flexibility is discussed as a possible solution. Faculty, briefing conferences, teacher competence, opportunity for practice of audio-lingual skills, housing and physical arrangements, demonstration class, culture courses, and language laboratory utilization are favorably emphasized in this evaluation. Major problems described relate to: (1) quality control of participants' practice teaching, (2) pattern drill construction by participants, (3) participant reaction to applied linguistics courses and their structuring, (4) damaged student morale resulting from taking standardized tests, and (5) credit for Institute study. For the report of the 1959 Institutes see FL 001 529. (RL)