Creation of the Tennessee Valley Authority. Boat moves across in river Tennessee. Animated map shows various dams constructed on Tennessee River Basin. Engineers conduct geological and geographical surveys to determine dam sites and reservoir area. Workers clear the reservoir area of timber. TVA (Tennessee Valley Authority) member meets owners of houses in the area. He reads out a document to them. The owners sign document. Property dealer visits woman, inspects houses and takes notes. The American flag in front of the building. Owners visit the house to be purchased.
Creation of the Tennessee Valley Authority. Small lake at Tennessee River Basin. TVA (Tennessee Valley Authority) protects its members and public through its Malaria control program. TVA members on boat spray pesticide next to river area to kill mosquitos. Man with backpack pump walks in shallow water on edge of river, pumping a manual lever on the backpack and applying pesticide along the shoreline.
Teacher teaches under-privileged children at Henry Ford Convalescent School. Druggist at work in laboratory. Man hands prescription to druggist behind counter. The druggist fills the prescription. Technicians work in optical shop.
Temperature and humidity controlled Cabinets. Patients lie on bed. Nurse tucks blanket around patient's bed and checks his pulse and blood pressure. She wraps patient's feet, covering them with thick socks and pushes the bed into cabinet. Nurse closes door leaving patient's head outside the cabinet enclosure.
Narrated feature about human curiosity and basic science. Sunlight glistens on snow-covered mountain edge. Trees on a mountain side. Girl in a hat runs along a mountain slope, beside melting snow fields, picking early spring flowers and putting them in a wicker basket. A boy plucks a flower and examines it with a magnifying glass.
Narrated feature about scientific discoveries and applications of the microscope. Actors portraying invention of microscope in Delft Holland. Actor grinds and polishes a lens. He looks through the microscopic lens at a drop of water and discovers minute living organisms. Actor portraying French chemist Louis Pasteur studies the microscopic forms of life found in the solution of ferment. He discovers that heat kills germs. Men ferment wine. Discussion of pasteurization, vaccinations, and Pasteur. Herd of sheep grazing. Boy contaminated with rabies comes to Dr Louis Pasteur. Boy bitten by a dog. He discovers a vaccine for the deadly rabies and gives it to the boy.
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