The Title I English as a Second Language (ESL) program in Boston (1980-81), was designed to provide supplementary ESL instruction to elementary and middle school students and those enrolled in a native language reading component. The program's major objective was to develop aural-oral English language skills in limited-English-speaking children, and to help them adjust socially and progress academically. The program was also designed to provide remedial instruction where needed in the pupils' native language. The program as a whole was judged to be successful, with elementary students mastering 82 percent of performance objectives, middle school students mastering 80 percent, and native language reading students mastering 76 percent (Spanish) and 51 percent (Italian). Pre-post test scores also showed overall gains, with the greatest achievements being in the elementary and middle school components. The program was staffed, implemented, conducted, and administered as specified in the program proposal. Most facilities were excellent, staff support of the program was high, and record-keeping was careful and consistent. Inservice training for teachers, aides, and community field coordinators was carefully planned and presented. (CMG)