Adults are now examined when applying for insurance or accident policies, for work on railroads, for service in the army and on the police and fire forces of cities that provide pensions. It is somewhat surprising that the hundreds of thousands who carry life insurance policies have not realized that a test which is rigorously imposed for business reasons by insurance companies can be applied by individuals for business reasons. Generations hence the state will probably require of every person periodic physical examination after school age. Decades hence business enterprises will undoubtedly require evidence of health and vitality from employees before and during employment, just as schools will require such evidence from teachers. It is, after all, but a step from the police passport to the health passport. Why should we not protect ourselves against enemies to health and efficiency as well as against enemies to order? But for the present we must rely upon the intelligence of individuals to recognize the advantage to themselves, their families, and their employers, of knowing that their bodies do not harbor hidden enemies of vitality and efficiency. From a semi-annual examination of teeth to a semi-annual physical examination is but a short step when once its effectiveness is seen by a few in each community. [Illustration: THE OLD SOUTHFIELD, NOW ANCHORED AT BELLEVUE HOSPITAL'S DOCK, NEW YORK CITY, GIVES DAILY LESSONS IN THE PREVENTABLE TAX LEVIED BY TUBERCULOSIS]