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MOTION PICTURES 105 Lifeblood of the Land U.S. Department of Agriculture, 1947. Disasters of overcutting, overgrazing, and erosion; appeal for water conservation to insure increased crops, productive range, water and forests for recreation, and rivers for fish and commerce. (19 min- utes, color) 3, 32, 41 Lifeline: Medical Supply U.S. Department of the Army, 1943. How the medical supply system of the Army functions; how the wounded of Rendova and Munda operations were evacuated and treated. (WF 10; 17 min- utes) 41 Lifesaving U.S. Department of Agriculture in co- operation with American National Red Cross, 1937. Instructional film; strokes best for lifesaving; approaches; break- ing holds; carries; boat and ring buoy rescues; Schafer method of resuscitation; underwater photography. Silent version, same title, also available. (17 minutes) 32, 41 Lifesaving U.S. Department of Agriculture in co- operation with American National Red Cross, 1937. Silent version of sound film "Lifesaving." (25 minutes, silent) 32, 41 Lift U.S. Civil Aeronautics Administration in cooperation with Shell Oil Co., 1949. (How an Airplane Flies Series No. 1) How action of air passing over wing section is extension of Venturi tube prin- ciple; how changes in air pressure on upper and lower surfaces of wing create upward force or lift; how angle of wing determines amount of lift. (12 minutes) 7 Lifting Templates for a Foundation U.S. Department of the Navy, 1944. (Shipbuilding Skills Series. The Ship- fitter) How to lift a template within the hull of a ship; transfer jhe shape of the hull by use of measurements and card- board. Supplementary filmstrip, same title, also available. (MN 2338-a; 23 minutes) 41 Light-Sensitive Materials U.S. Department of the Navy, 1948. (Fundamentals of Photography Series) Fundamentals of still and motion picture photography. (MN 5385; 20 minutes, color) 41 Lights, Running and Anchor U.S. Department of the Navy, 1942. (Rules of the Nautical Road Series) Inland and international rules for color of lights, position and visibility for mast- head, side, range and anchor lights, and lights displayed by vessels being over- taken. (MN 202-c; 17 minutes, color) 41 Lights: Vessels Being Towed U.S. Department of the Navy, 1943. (Rules of the Nautical Road Series) In- land light rules for barges and canal boats; scows; barges; scows and non- descript vessels in N. Y. harbor area; dump scows in N. Y. harbor. (MN 202-f; 10 minutes, color) 41 Lighthouses and Lightships U.S. Department of the Navy, 1944. (Aids to Navigation Series) Markings of coastal and inland water ways; principal aids to navigation and their purposes. (MN 202-aa; 9 minutes, color) 41 Lighting Off U.S. Department of the Navy, 1944. (Fireroom Operation Series) Fire-room operation; adjustment of each piece of equipment preparatory to getting under way. Film for training for specific duties and teaching direct relationship of jobs. (MN 2356-a; 39 minutes) 41 Lima U.S. Coordinator of Inter-American Af- fairs, 1944. Beauties, history, buildings, modern life, and problems of the City