The research reported is a descriptive normative survey utilizing the data available from the required quarterly reporting of the high school districts in Cook County. In suburban Cook County there are 27 secondary school districts and two unit districts, including Chicago. The 28 suburban secondary school districts are comprised of 68 high school buildings with a total enrollment of 159,976 students. The secondary school enrollment for the Chicago schools in September 1974 was 145,878 for the 1973-74 school year in 49 general high schools, 10 vocational high schools, 1 trade school and 1 high school for the physically handicapped. Each school district was contacted by letter in November 1973, requesting the mandated information on students who were removed from the school rolls. Each quarterly district report was due on the first school day of October, January, April and July. The requested information, according to statute, includes the names of pupils, excluding transferees, who have been expelled, have withdrawn, or have left school and have been removed from the regular attendance rolls during the period of time school was in regular session since the previous quarterly report. This study includes statistical tables, legislative history, and justification for further legislation suggesting alternative educational programs for students whose needs are not met in a typical school environment. (Author/JM)