At the suggestion of the Colorado Tuberculosis Association a survey of the cases of tuberculosis in the school was undertaken in the town of Aurora. The Fitzsimons Government Hospital, located at Aurora, ten miles from Denver, is the largest institution in the United States caring for patients with tuberculosis. It is not surprising, therefore, that a large proportion of the population, numbering 968, in the town consists of health seekers and tuberculosis "contacts." The economic status of most of the families is below that of families in the average American community. Crowded housing conditions and inadequate food budgets are common, and the incidence of juvenile tuberculosis here could be expected to be as high or higher than that in any community in the United States. The present study was designed to ascertain if this expected high incidence of juvenile tuberculosis actually exists, to determine also the relative incidence of tuberculous