Our previous report1 included results of the examination of 3,120 children in which the effort was made to collect statistics that would throw a light on some of the outstanding clinical problems relating to deaf children. The value of conclusions to be drawn from such statistical studies depends in no small measure on the number of children examined. Errors which are bound to creep in are in this way largely offset by the number of examinations. We were requested, therefore, by the National Research Council to pursue these studies in other public institutions for the deaf in order to bring the total number of children examined up to approximately 5,000. The previous studies included institutions located in the Middle West, that is, in Illinois, Missouri, Iowa, Indiana, Ohio, western Pennsylvania, Michigan, Minnesota and Wisconsin. Additional schools included institutions located in states on the eastern seaboard.
New York City