This is the report of a demonstration tutorial project which was conducted in New York City as part of the Mobilization for Youth program. Eleven tutorial centers were established in neighborhood elementary schools, and 240 students from local academic and vocational high schools were hired to tutor 544 fourth- and fifth-grade pupils. Each center was run by a master teacher, who, in addition to administrative activities, was responsible for training the tutors. For the purposes of evaluation tutors and tutees eligible for the program were randomly assigned to experimental and control groups. Experimental pupils were tutored either once or twice a week for 2 hours. Findings are reported concerning the impact of the program on the participants' reading achievement, school marks, behavior, and attitudes before and after their tutoring experience. Also presented are specific recommendations for the establishment of similar tutorial programs. Separate technical reports containing extensive evaluation data on both the pupils and their tutors are included. (LB)