15941. Making glass for houses (11:05)

Date:
1948
Main contributors:
Encyclopaedia Britannica Films Inc.; F. V. Tooley
Summary:
Describes how the three ingredients of glass-limestone, sand, and soda ash--are obtained. Close-up shots present a simple laboratory demonstration of basic glassmaking techniques. Then shows larg...

15942. Modern Surgery (18:48)

Date:
1948
Main contributors:
See Other Contributors
Summary:
Shows the doctor diagnosing Mrs. Conrad's illness as gallstones, and follows her to the hospital, where every phase of her care is discussed. Presents the preparation for the operation, the steps i...

15943. Motivation and Reward in Learning (14:17)

Date:
1948
Summary:
Compares a hungry, active rat with a satiated, inactive rat. The hungry animal learns to get food by pressing a bar, while the satiated animal goes to sleep. To demonstrate that failure to learn is...

15944. New Frontiers of Medicine (17:43)

Date:
1948
Main contributors:
See Other Contributors
Summary:
Discusses recent drug discoveries such as sulfa, penicillin, and streptomycin; increased opportunities for medical students from all parts of the world to study in this country such problems as the...

15945. Osmosis (19:47)

Date:
1948
Summary:
Teaching Film Custodians release of a Motion Picture Association of America short film. A high school student, who is having difficulty understanding the textbook explanation of osmosis, discusses ...

15946. Public Relations (17:06)

Date:
1948
Main contributors:
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Summary:
Depicts the value to be derived by all from effective public relations between business, labor, government, and the people. The role of public relations personnel is shown, as is the type of course...

15947. Riches of Guatemala (13:47)

Date:
1948
Summary:
Shows Guatemala's natural resources, crops, and other products. Includes the cultivation of coffee, bananas, corn, pepper, cinchona for quinine, and plants for rotenone. Includes a short Spanish l...

15949. Schooltime in camp (17:57)

Date:
1948
Summary:
Presents a 1948 report on the School Camp experiment authorized by the Board of Education of the City of New York and conducted in cooperation with Life Camps, Inc. Shows numerous examples of chil...

15950. Seeds of destruction (09:35)

Date:
1948
Main contributors:
The Conservation Foundation; New York Zoological Society; John H. Storer
Summary:
The fourth in the "Living Earth" series. Shows what happens when nature's balance is upset by exploitation of natural resources. Suggests that organized planning and conservation can arrest the d...

15951. Sense into dollars (12:45)

Date:
1948
Summary:
Illustrates the different methods used by various salespeople. Shows how suggestive and descriptive selling aids the customer, the individual salesclerk, and the store.

15952. Simple Slab Methods (10:34)

Date:
1948
Main contributors:
Indiana U Audio-Visual Center
Summary:
[motion picture] Demonstrates three slab methods of pottery-making. Shows wedging, forming a candleholder directly from a lump of clay, rolling a slab for a simple tile, and constructing a flower ...

15953. Simple slab methods (46:02)

Date:
1948
Summary:
Demonstrates three slab methods of pottery-making. Shows wedging, forming a candleholder directly from a lump of clay, rolling a slab for a simple tile, and constructing a flower container from sev...

15954. Soap : production and cleansing action (11:28)

Date:
1948
Main contributors:
James W. McBain; Encyclopaedia Britannica Films Inc.
Summary:
Illustrates in a school laboratory how lye and fat are combined to make soap, and explains, by animated drawings, the chemical action (saponification) which takes place when the mixing occurs. Por...

15955. Solar prominences (11:42)

Date:
1948
Summary:
Photographed at the McMath-Hulbert Observatory, near Lake Angelus, Michigan, this film presents five types of solar disturbances or prominences, including quiescent, spot, cap, quasi-eruptive and l...

15959. T-Men of the Treasury Department (18:23)

Date:
1948
Main contributors:
See Other Contributors
Summary:
Dramatizes the work of the six law-enforcement agencies of the Treasury Department, which are shown dealing with smuggling, narcotics running, illegal production and sale of alcohol, counterfeiting...

15960. The Airport (11:03)

Date:
1948
Summary:
Shows many phases of the work at a large municipal airport, including the buildings, the radio room, the reservation desk, the preparation of the plane, the take-off, and the control of private pla...