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A story of land economy and one man, Bill Bailey of Clarksville, Tennessee, through whose foresight and untiring effort the Four Pillars of Income were established in Montgomery County, Tennessee (adapted from the Reader's Digest story of the same name by J. P. McEvoy).
Presents in detail step-by-step techniques used in gravimetric analysis and the preparation and use of both the Gooch crucible filter and regular filter paper in this type of chemical analysis. Part I gives an overview of the operation in determining the chloride concentration in a silver chloride sample. Shows in detail the weighing of the sample, dissolution, precipitation, filtration, drying, and weighing of precipitate.
Shows how pigeons are taught abnormal behavior patterns by means of selective reinforcement of response and how the removal of the reinforcement causes the gradual extinguishing of the learned response. Derives from the experiments basic principles about learned behavior which are applicable in the training of children.
Shows how behavior that is reinforced does get learned while non-reinforced behavior is extinguished.
Shows how Canada's northwest airlines have conquered the almost impenetrable natural barriers of rivers and mountains on the Pacific coast. Reveals how air bases were built, supplied, and serviced during World War II. Shows the city of Edmonton as a gateway to the new North, to Russia, India, China, and the Orient.
Teaching Film Custodians classroom film of excerpts from the 1950 20th Century-Fox feature film, "The Big Lift". Incorporating newsreel and Air Force film footage, this film illustrates the results of the post WWII Berlin blockade by the Russians in 1948. The organization and operation of the Allied Airlift to bring food, fuel, clothing, and medicines to the city is highlighted. The effectiveness of the Airlift in forcing the Russians to abandon the blockade in 1949 is examined.
Presents two excerpts from Maxim Gorki's play The Lower Depths, as played by the Moscow Art Theater. One scene shows a group of social outcasts telling stories of former wealth and grandeur and an actor soliloquizing on "What is Man?" The second scene, taking place at a drinking party, shows the group's reaction to the actor's suicide.
Explains and illustrates in detail simple stunts for strength, stunts for skill, and stunts with sticks. Demonstrates the techniques and benefits of stunt variations, and emphasizes safety precautions.
Pictures a northern English farm around haymaking time, stressing the interdependence of city and country life. Vegetables and milk go to the city markets and wool goes to the factories. From the city the farmers get manufactured products. As a World War II service, the townsfolk are shown forming voluntary land clubs to help the farmers with their work.
