The present investigation has been undertaken with a view to discovering, if possible, what factors int he life of a Post Office emplyee and in the conditions of his occupation, influence the incidence and prognosis of Pulmonary Tuberculosis, and to what extent can regular and efficient service be expected from those who have contracted the disease. The question is an important one for those employers who, like the Civil Service, give security of tenure, pay salaries during absence on sick leave and offer pensions on retirement whether on account of age or ill-health. Loss of time on the part of the employee means loss of revenue and substitutes have to be found to fill the vacant posts. The present writer is not a specialist in tuberculosis, being engaged in a large out-patient practice on the staff of the Post Office, examining candidates and reporting upon the fitness or otherwise of special cases sent for the purpose
