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How to direct trafficthrough intersections and; control two-way traffic over one lane stretches and bridges. Poising Balance Wheels 1946. U.S. Veterans' Administration, 1949. How work capabilities of patients with physical disabilities are discovered through light mechanics procedures. (15 minutes) 41 Pole Drainage U.S. Public Health Service, 1946. (Malaria Control Series) How to eliminate 1945. quagmires and other marshy mosquitobreeding areas through pole drainage returning the land to productivity. Animation. (CDC 4-033; 7 minutes, color) A Policlinica Da Sua Cidade U.S. Institute of Inter-American Affairs, 1947. Portuguese version of "Your Health