71. Deep end (10:12)

Date:
1950
Summary:
Presents Ruth, Jump, Marjorie Gestring, and others diving from a 33-foot tower to show championship form in diving. Pictures Iris Cummings and the Hopkins twins as they demonstrate the breast stroke and crawl.

72. Digestion, part 1 [mechanical] (17:48)

Date:
1950
Main contributors:
Winifred Cullis, Gaumont-British Instructional Ltd., Beryl Denman Lacey, Frank Wells, Louis Dahl
Summary:
Uses animation to show the mechanical and muscular processes involved in the digestion of food. Includes the absorption of digested food, water, and salts into the blood and the function of the liver.

73. Digestion, part 2 [chemical] (20:18)

Date:
1950
Main contributors:
Winifred Cullis, Gaumont-British Instructional Films, Beryl Denman Lacey, Frank Wells, Louis Dahl
Summary:
Uses animation to demonstrate the chemical processes of digestion. Shows the chemical breakdown of foods, the structure and functions of the glands involved, the absorption of digested foods, and the distribution and storage of food in the body.

74. Feelings of depression (30:23)

Date:
1950
Summary:
A re-enactment of an actual case history, tracing the genetic development of a neurotic depression by examining the ideational content and emotional significance of a series of experiences in the life of one individual from infancy to adutlhood. For graduate students and specialists in psychiatry, psychoanalysis, clinical psychology, and psychiatric social work; medical students, patients in group therapy; lay audiences interested in the field of mental hygiene.

76. Following too close (06:08)

Date:
1950
Summary:
Highlights the dangers of following another vehicle too closely and demonstrates the proper amount of distance a driver should maintain in order to avoid an accident.

77. Foremost : big dip (01:02)

Date:
19uu
Main contributors:
Foremost
Summary:
An advertisement for Big Dip "ice milk" in which an animated man tells an ice cream scoop about the product and the scoop creates a sculpture of the Eifel Tower out of the ice milk.

78. Fundamentals of acoustics (second edition) (10:50)

Date:
1950
Main contributors:
Physical Sciences Staff in the College, The University of Chicago, Encyclopaedia Britannica Films
Summary:
Compares sound waves with water waves, provides examples of echoes and explains how they affect acoustics indoors, demonstrates effects of different wall surfaces upon the reflection of sounds, portrays the mechanics of our hearing process, dramatizes the range of the human voice, reveals the effects of eliminating certain vibrational frequencies, and identifies ultrasonics. For high school, college, and adult groups.

79. Gas for home and industry : world energy resources (16:34)

Date:
1950
Main contributors:
See Other Contributors
Summary:
Explains the role of fuel gas as a source of energy. Begins with the history of gas lighting. The cleanliness, efficiency and versatility of gas is investigated. Describes the production of various types of manufactured gas, using natural photography and animated drawings. Details the production of coke oven gas and carborated water gas, including the collection of raw materials, heating, cooling and purification. Examines how the by-products of the production of gas are used. Shows how natural gas is obtained from wells and distributed through pipelines to population centers. Discusses the importance of research and education in gas conservation. Discusses future technological developments being made in gas manufacture through testing fuel burning equipment and studying new chemicals.

80. General Electric "Men Helping Man" (01:03)

Date:
19uu
Main contributors:
General Electric
Summary:
An advertisement for General Electric garbage disposals in which an offscreen male narrator describes the disease risk from common houseflies and how the town of Jasper, Indiana eradicated most of their flies through reforming garbage collection and installing GE kitchen disposals. Close-ups of flies and footage of Jasper accompany the narration. Submitted for the Clio Awards.