The modern idea of the construction of the general hospital building is that the building itself should bear a definite relationship to treatment, that it is more than a mere convenient form of lodging house for the sick, and that environment is a potent factor in the control of disease, often more powerful than the giving of pills and potions. One reason among many for this position is the lesson taught by tuberculosis, namely, that fresh air is not a specific for that disease alone, but acts through increasing the resisting power of the organism. If this be true of tuberculosis, why is it not also true of many other diseases? Hence hospitals are built with almost as much ward space outside as inside the retaining walls, with wide verandas opening off every ward, and broad flat roofs for exercise, fresh air and sunlight.
Another reason is a demand for