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possessed by the employee. This concept implies an understanding of "jobs for the eyes" and "eyes for specific jobs." Placement of employees with the application of this concept is not universal. If our contemplated program can be developed and adopted, we believe that there will be not only an increase in production efficiency but also an improvement in the health, contentment and happiness of employees. 5. Health Factors and Vision.-The state of one's general health directly affects visual health and efficiency and, vice versa, visual health has a direct influence on general health. Space and time do not allow of further elaboration of this statement. It is made here to call attention to the intimate connection between vision and health. Also there are problems of housing, recreation, domestic relations and nutrition which have a bearing on health and which need further consideration. At the present time .much investigation is being made to discover the influence that vitamins may have on general health and particularly on visual efficiency, but no satisfactory conclusion has been arrived at.6. The Program.-To carry out a satisfactory program of testing, examining and correcting of visual defects, there must be complete coordination of activities between management, employees, medical departments, ophthalmologists and opticians. When the value of a completely coordinated program is comprehended, the desired cooperation between all interested parties will not be difficult to secure.

The accompanying chart indicates the relationship between the titers and the day of the disease on which the blood was collected. On this chart have been recorded samples of serum from 27 patients who gave at least one positive reaction. Patients who gave only negative reactions have not been included.