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Presents the hypothesis that chiasmata represent physical evidence of crossingover. This would mean that crossingover takes place at a four-strand rather than a two-strand stage. Genetic proof for this is presented from studies with Neurospora, described in detail, and prefaced by a description of the life cycle and meiotic divisions of this organism. Discusses the normality of chiasmata, and hence crossingover, and pictures cytological evidence of crossingover. Lecture by Dr. G. W. Beadle.
Presents the importance of farming and farm life in Indiana and shows how mechanized methods have improved products and brought better economic conditions to the farmers. Explains what the Farm Bureau Cooperative Association is and how it has helped the farmers. Uses views of the Indiana State Fair to indicate that the farmer is the center of focus there.
Presents a profile of a winner of an Indianapolis "500" race, with highlights of the 1970 race. Interwoven are sequences stressing safe driving on and off the track.
A supervisor asks an employee for work-improvement suggestions; the employee talks the problem over with his father and sister, obtains their advice, and makes some worthwhile suggestions.
United States. Department of Agriculture. Soil Conservation Service
Summary:
A USDA production conveying the department's policy recommendations for the development of unusable wetlands into productive agricultural land. Narration explains that, for much of the year, land with "too much water with nowhere to go" is rendered unsuitable for farming. Engineering the draining of 31 million acres for the creation of productive agricultural land represents "one of the last great frontiers of America." Various drainage techniques are explained in detail: ditches, tile systems, and the creation of mole channels. "Shows where our 120 million acres of wet land are located. Points out that 78 million of these acres will serve us best if left in their natural state for the production of timber and the preservation of wildlife. Thirty-one million acres are shown to be suited to farming if properly drained. A section of the film illustrates briefly the principal types of water control and methods of land drainage. Through the use of these methods, farmers, working together, can improve drainage on land now being farmed, and bring into production land that is now too wet for any production at all. Recommended audiences: Farmers in Atlantic Seaboard and Gulf States; Ohio, Mississippi, and Missouri Valleys" (Motion Pictures of the United States Department of Agriculture, 1945, 46).
United States. Department of Agriculture. Bureau of Entomology and Plant Quarantine
Summary:
A presentation of the Bureau of Entomology and Plant Quarantine's code for the prevention of termite infestation. Using animated diagrams and detailed photography of actual termite infestations, the film educates builders and homeowners in inspection, remediation and prevention methods. Poor construction practices invite the ravages of these devastating insects. The film shows how buildings can be protected from further damage and points to be observed undertaking new construction. "It costs us 50 million dollars a year to feed the termites, it costs far less to block them," concludes the narrator.
Indiana University, Bloomington. Audio-Visual Center
Summary:
A dramatization which compares responsible drinking with alcohol abuse. Intermixed with scenes from a party, a male and female participant each present facts about alcohol consumption and its effect on physical and mental functioning. Contrasts the view of a person who advocates abstinence with the opinions of a drinker who rationalizes his heavy drinking. Some of the facts presented reveal the relationship between the number of drinks consumed and blood-alcohol levels, the effects on the individual at each level, and tips about how to moderate drinking and behave responsibly if one is consuming alcohol.
States "food is a weapon of war," showing that women must learn to use the less desirable cuts of beef during wartime rationing. "A wartime film showing conservation needs and food planning in regard to wisely chosen cuts of meat. Various cooking methods are demonstrated to help housewives plan meals economically. By planning and cooking well, the wartime housewife helped to solve the problems of rationing during a national food emergency" (National Film Board of Canada catalog record http://onf-nfb.gc.ca/en/our-collection/?idfilm=16407#nav-generique).
