A careful and convincing report of research designed to find out if one of the causes of behavior disorders in children can be related to prenatal or paranatal abnormalities of mother or offspring, such as bleeding, eclampsia, cæsarian section, prematurity, cyanosis, and convulsions. The answer is "yes." The 81 pages of text serve to document and qualify this reply. There are 140 references and an appendix consisting of 67 pages of additional tables.
The 1151 children with behavior disorders were those referred by teachers to guidance services of the Baltimore Department of Education. The 902 controls were taken from the same classrooms and were also matched for race and sex. The information about the children was obtained from hospital, school, and guidance records.
Among the conclusions are the following: (1) A significantly larger proportion of the problem children had birth weights of 2500 gm. or less. (2) A significantly larger