This report consists of an evaluation of four experimental French programs (1973-74) and the federally-funded extensions of these programs (1974-75) in the schools of the Carleton, Ontario, Roman Catholic Separate School Board. Part 1 provides a review of literature relevant to immersion, intensive and enriched language programs, and the attitudinal and motivational aspects of second language acquisition. The various second language programs, which cover grades K-8, are also described. Intensive French programs consist of 90 minutes of French instruction per day, while enriched programs consist of 40 minutes per day. In immersion programs, native English-speaking children receive curriculum instruction in French. Part 1 presents the results of comparisons of grade 1 and 2 immersion programs with intensive programs. Part II provides a summary of the 1973-74 results, a description of 1974-75 programs, and results of comparisons of grade 1, 2, and 3 immersion programs with intensive programs. Both parts provide the results of a comparison of enriched programs with 20-minute programs, and the evaluation of the effect of short-term immersion on the attitudes of children studying a second language. The appendix to Part 1 includes information concerning the population sample, tests and questionnaires used, and variables considered. The appendix to Part II provides samples of the tests and questionnaires used, test schedules, and statistical results. (CLK)