The report summarizes the activities of the transitional program at Mount Holyoke College during the summer of 1966. The precollege educational program for girls, grades 9 through 11, was structured to enhance the academic, social, and cultural expectations of disadvantaged youth and to increase their chances for a college education. The program, conducted in cooperation with independent schools and supported by private and governmental sources, included many features similar to the 1964 ABC Summer Program for boys at Darmouth College. The appendices include statistical data and sample recommendations, evaluations, and tests. (EMB)