Volume IV of the evaluation report consists of case studies from 10 migrant education projects in 8 of the sample States. These projects were visited in July through September 1973. The case studies give noteworthy or innovative aspects of the projects, detailed descriptions, and the functions. The projects are: (1) Harnett County Summer Migrant Education Project; (2) Pitt County Migrant Education Project; (3) New Jersey Office of Migrant Education Recruiting Program; (4) New Jersey Office of Migrant Education Health Services for Migrant Children; (5) the Archway School; (6) Mobile Educational Unit Program; (7) Pilot V Program; (8) Migrant Summer School - Williamson Central School; (9) Dixon Camp Migrant Infant Care Program; and (10) Vocational Child Development Program - Hamilton Union High School. The observers found that most noteworthy projects, no matter where they were located, what kind of a program they offered, or how much money they had, were characterized by the strong central leadership of the project directors and by the personal dedication of the staff. The appendices include: (1) supplementary data and calculations for the recommended estimation method discussed in Volume I; and (2) the Texas testing results mentioned in Volume II. (NQ)