1. "It's only the beginning" (10:15)

Date:
1951
Summary:
Describes the importance of industrial research in satisfying consumer needs and meeting competition. Shows through animation the large expenditure of time and money that has gone into the development of nylon, as well as into unsuccessful attempts to develop new products.

2. "It's the humidity" (13:04)

Date:
1962
Summary:
Uses common everyday examples of the effects of humidity to introduce and explain this idea. Shows Kay, an attractive teenager, and her adventures with a violin, a stuck drawer, and drying off at the pool as these processes are influenced by the humidity. Animates an explanation of dew, relative humidity, and dew point. Shows and explains several weather instruments for measuring humidity.

3. A day of Thanksgiving (12:34)

Date:
1951
Main contributors:
Centron Corporation
Summary:
Tells the story of a typical American family, and how they use Thanksgiving Day as the occasion to review the freedoms and privileges which they enjoy in their everyday living under the American way of life. Shows how they come to remember that they have much more to be thankful for than just the usual symbols associated with Thanksgiving Day.

4. A long time to grow part 1 : two and three year olds in nursery school (37:21)

Date:
1954
Summary:
Presents two- and three-year-old children in their daily activities at a nursery school. Shows them imitating adults in their play, expressing hostility, responding to rhythm, learning to wash and dress themselves, eating, and taking an afternoon nap. Reveals how they learn about nature and life in the spring by discovering and examining living things. Points out that by the time they are four they become more social and begin to play in groups. Follows the activities of two- and three-year-old children through the nursery-school day and through the seasons of the year. Shows ways in which teachers offer help, by setting limits and by giving support and encouragement; and indicates in playroom and playground scenes the variety and suitability of play equipment for natural and constructive activity.

5. A long time to grow part 2 : four and five year olds in school (36:36)

Date:
1954
Summary:
Presents the spontaneous activities of four- and five-year-old children and what they find interesting in their world. Shows the four-year-olds mastering their familiar world through vigorous group play, sensory pleasure, make-believe, and use of materials and words. Presents five-year-olds as entering the more formalized, enlarging world of older children--playing games with simple rules, seeking facts, wondering, and using letters and numbers. Points out that teachers should follow the lead of the child's curiosity and should provide the child with activities that will prepare him for later instruction.

6. A long time to grow part 3 : six, seven, and eight year olds-society of children (28:55)

Date:
1959
Summary:
Observes six-, seven-, and eight-year old children at play and in school and emphasizes that children's play activities with their adherence to the rules, rituals, and regulations which have been established have changed little over the years. Points out the desire of this age group to have close identification with a peer group and its activities as they become less dependent on parents.

7. A Safe Shop (12:09)

Date:
1955
Summary:
Describes the many safety rules applicable to the industrial arts shop. Shows such measures as the use of proper clothing, goggles, and shields; the spacing of work areas; the use of tools; the disposal of waste; and the storage of lumber and inflammable liquids. refers to the safe use of power tools, the care of electrical equipment, and proper conduct in the shop. Concludes with a review of the principal safety precautions.

8. Aqua frolics (09:07)

Date:
1946
Summary:
Includes scenes of performing seals, underwater basketball, cliff diving, water skiing, canoeing in rapids, motor boat feats, and synchronized swimming.

9. As boys grow (16:34)

Date:
1957
Summary:
The coach of a freshman track team explains to teenage boys the intricacies of the male reproduction system, primary and secondary sexual characteristics, and the relationship between the sexes during adolescence.

10. Bill Bailey and the four pillars (18:07)

Date:
1945
Summary:
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).

11. Booze and yous (14:06)

Date:
1977
Summary:
Features a W.C. Fields type cartoon character who gives hints for responsible drinking, clears up common misconceptions and myths about drinking, and points out possible consequences of irresponsible drinking behaviors. Presents, in a humorous manner, an historical look at the cultural use and manufacture of different kinds of alcoholic beverages. Aimed primarily at college students to help them make responsible decisions about their drinking behavior if they choose to drink. Includes animation and live action.

12. Boundary lines (11:11)

Date:
1945
Main contributors:
Phillip Stapp, Tony Kraler, Nathan Sobel, International Film Foundation
Summary:
By means of animated lines, figures, and scenes, film illustrates through everyday happenings how "a line may be many things" and "a line is only an idea." Makes a plea for tolerance and a breaking down of all types of barriers between people. A plea to eliminate the arbitrary boundary lines which divide people from each other. Presented in stylized animation.

13. Children's play (26:27)

Date:
1956
Summary:
Shows that play is an important activity for children and that it has common patterns at different ages. Considers play activities of children between the ages of five and twelve years and explains the part that parents can play in helping to encourage and guide play at each age level.

14. Collision stations (29:45)

Date:
1959
Summary:
What happens when a rocket ship in space is struck and damaged by a meteor? Capt. Gell, a Navy expert on crew equipment, demonstrates the Navy’s full-pressure space suit for emergency escape from a shattered craft. Dr. Haber, an aerodynamic engineer who has made a thorough study of the theoretical problems of escape and survival far out in pace, explains the difficulty of making an individual descent into the atmosphere, on one hand, and of rescuing the stranded flyer in space, on the other. Dr. Herbert’s recommendation: the crew should ride the damaged vehicle back to earth --if anything remains of it.

15. Color lithography : an art medium (31:44)

Date:
1955
Summary:
Shows the preparation of a lithographic stone and methods of drawing on stone with crayons and Tusche liquid. Demonstrates the processes needed for three-color printing and presents and discusses examples of color litho work. Depicts an edition being made of 50 prints from original works.

16. Color on a stone (12:26)

Date:
1962
Summary:
Explores the possiblities of creating color lithography and explains methods of visualization, transfer and simple registry. Shows Patrick Dullantry, an American printmaker who works over progressive proofs of his work to develop a color lithograph. Presents color lithographs by such masters as Toulouse Lautrec, Paul Cezanne, Renoir, and works of modern contemporary young American printmakers.

17. Constitution of the United States (22:10)

Date:
1956
Summary:
Depicts the events and conditions leading to the writing of the U.S. Constitution, the formulation of the Great Compromise between the small and large states, the struggle for ratification, and the addition of the Bill of Rights. For junior high, high school, and college students. Pictures some of the historical background of the struggle by the colonies for independence and of the signing of the Constitution. Includes Shay's rebellion against the tariff, the weaknesses of the Articles of Confederation, and the disagreements among states. Shows how the misunderstanding between large and small states led to the establishment of a House and a Senate.

18. Dance : a reflection of our times (29:37)

Date:
1960
Summary:
Discusses the use of the dance as a social commentary and relates it to the critical statements of artists in other fields. Presents a performance of "Caprichos" based on Goya's etchings of man's weaknesses. In contrast, an excerpt from Paeon is performed. Features choreographer Herbert Ross and his troupe.

20. Decoration (1:10:40)

Date:
1951
Main contributors:
Harold Otwell, Karl Martz, Robert Gobrecht, George Fleetwood, Indiana University Audio-Visual Center
Summary:
Shows a skilled ceramist applying designs on several ceramic pieces prior to final firing. He uses the clay itself, a comb, a piece of burlap, or clay stamps to create textured designs. Other decoration methods illustrated include colored glazes, clay slip, "Mishima," sgraffito, and wax resist. Shows samples of representative pieces after decoration and firing.

21. Defending the city's health (11:14)

Date:
1941
Summary:
Modern community hygiene controls are presented. How the death rate from communicable diseases has been reduced through scientific advances and social controls. The effective functioning of a public health department.

22. Defense of the Western hemisphere (16:56)

Date:
1951
Summary:
Traces the development of the Good Neighbor Policy, the Rio Treaty against aggression, and the Organization of American States set up at Bogota. Describes the importance to the Western Hemisphere of NATO and the U.N. military action in Korea. Stresses the economic interdependence of the American countries and the responsibility of the United States in the Western Hemisphere.

23. Defensive footwork in basketball (09:34)

Date:
1946
Main contributors:
Encyclopaedia Britannica Films Inc., Wilbur Johns, Norman Sper
Summary:
Analyzes defensive footwork action in basketball by first demonstrating the correct stance. Slow motion and close-up photography then portray the two basic defensive moves: the parallel movement, which governs lateral guarding motions, and the stride, which governs advancing and retreating motions. Emphasis is placed on the correlation of arm movement with footwork, turning, pivoting, and getting into position for taking the ball on the rebound.

24. Defining primitivism (29:26)

Date:
1956
Summary:
Expands the popular definition of "primitive"--one who is self-taught--to include artists who reject academic or conventional expression, subject matter, or technique. Shows and discusses various examples of primitive art. (WQED) Kinescope.

25. Democracy's diary (16:11)

Date:
1948
Main contributors:
Jay Bonafield, Larry O'Reilly, Phil Reisman, Jr., Dwight Weist, Richard Hanser, Herman Fuchs
Summary:
Shows the organization of the The New York Times and the vast interrelationship of the numerous departments. Then illustrates the methods for giving up-to-the-minute news, and stresses the need for a free press.

26. Design of American public education (14:58)

Date:
1952
Main contributors:
United Productions of America, Howard T. Batchelder
Summary:
Through animation, the film compares and contrasts the "assembly line" kind of educational process with one that is tailored to meet young people's needs. Shows how in the former little or no consideration is given to individual needs, whereas in the latter a decentralized educational system can fit the curriculum to local community setups.

27. Designing a set (10:10)

Date:
1951
Summary:
Describes each step in planning and designing a stage set. Shows how the realization of the set emerges from rough sketches and a scaled model.

28. Development of our decimal numeration system (27:26)

Date:
1965
Main contributors:
Joseph Moray, National Council of Teachers of Mathematics, John M. Davidson, Richard Gilbert, Arthur M. Kaye, Shirley Tebbe, Francesca Greene, Peter Smith, Carole Eickhoff, Davidson Films
Summary:
Delineates interesting facets of the development of our decimal system. Compares the additive, subtractive, multiplicative, and positional notation aspects of the Chinese, Babylonian, Egyptian, and Hindu-Arabic systems. Uses models to explain concepts which lead to greater understanding of base 10 systems. This film traces the historical development of our present decimal system--the Hindu-Arabic system of numeration. The meaning and importance of base ten, place value, grouping, numerals, and expanded notation are carefully described.

29. Developmental genetics - I: a lecture by Dr. L. C. Dunn (29:40)

Date:
1959
Summary:
Portrays the role of developmental genetics in dealing with ways phenotypes come into being through the action of genes. Presents a complete discussion of the Creeper domestic fowl--its genetic basis, morphology, embryological history, and the experimental work that led to an understanding of how this gene affects early development to produce the morphological features seen as the outcome of the developmental process. Lecture given by Dr. L. C. Dunn.

30. Developmental genetics - II: a lecture by Dr. L. C. Dunn Columbia University (29:41)

Date:
1959
Summary:
Describes the ways in which genes produce phenotypic differences by acting very early in embryonic development. Shows that this action may take place at a distance through chemical messengers (pituitary dwarfism in the house mouse, lethal giant larva in Drosophila), or it may involve tissue induction systems (Brachyury and taillessness in the house mouse). Discusses the development of eye color in Drosophila as a model of how each of the steps in a chain of chemical processes leading to development is under genic control. Lecture given by Dr. L. C. Dunn.

31. 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.

32. 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.

33. Distance races (10:04)

Date:
1938
Main contributors:
Erpi Classroom Films, Lawson Robertson, Dean Cromwell, Brutus Hamilton, Harold A. Bruce, Amateur Athletic Union of the United States
Summary:
Includes races from 1,000 to 10,000 meters and steeplechase. Style of distance runner contrasted vividly with that of dash man. Differences in typical physiques. Steeplechase portrays various methods employed by participants in clearing barriers. An instructional sound film.

34. Distribution of foods (10:40)

Date:
1946
Main contributors:
Encyclopaedia Britannica Films, Inc., O.E. Baker
Summary:
Presents technical developments in the preservation and transportation of foods, the economic problems involved, and the world flow of foods. Depicts how such developments have increased the possibilities of distributing perishable foods on a world basis. Shows the problem of family income, maintaining flow of food from producer to consumer, the problem of tariffs, and the intercontinental movement of major foods on an animated map background.

35. Distributive education (16:00)

Date:
1955
Summary:
Portrays the nature and the role of the Distributive Education Program in the state of Virginia in preparing students for possible future jobs. Shows ow personality traits of an individual provide the basis upon which distributive education training can be pursued and depicts the duties of the distributive education coordinator and the activities of the distributive education clubs.

36. DNA structure and replication (29:15)

Date:
1959
Main contributors:
University Films, J. D. Watson, Irwin H. Herskowitz
Summary:
Describes RNA and DNA which are favored as the carriers of genetic information. Presents DNA molecules as shown in the electron microscope and describes the polymeric nature of the DNA molecule and DNA nucleotides. Compares the base content of DNA from various organisms. Describes in detail the three-dimensional organization of DNA as revealed through X-ray diffraction experiments. Pictures a Watson-Crick double helix model of DNA which suggests that DNA may replicate by the two complementary chains separating with each single strand then acting as a template to form its complement. Lecture given by Dr. J. D. Watson.

37. Do words ever fool you? (11:07)

Date:
1948
Main contributors:
Coronet Instructional Films, Viola Theman, Ph.D., Associate Professor of Education, Northwestern University
Summary:
Three elementary pupils learn that everyone attaches personal meanings to words and that the wording of newspaper stories, conversations, advertisements, and politics, for example, needs careful analysis to prevent confusion.

38. Double ram verticle surface broaching (29:12)

Date:
1947
Main contributors:
Division of Visual Aids, U.S. Office of Education, Federal Security Agency, Ray-Bell Films, Inc.
Summary:
Shows how to assemble broaching inserts in right- and left-hand toolholders, how to mount and adjust toolholders in the double ram; how to mount and adjust the work fixtures; how to set trip dogs for the ram stroke; how to measure the workpiece after trial broaching; and how to surface-broach on a double ram vertical broaching machine at a production rate.

39. Dr. Pinel unchains the insane (25:03)

Date:
1956
Main contributors:
Bernard Girard, James Fonda, Shirley Gordon, Michael Ross, Henry Corden, Lou Krugman, Gene Roth, William Hayden, Ernest Sarracino, Peter Brocco, Lewis Charles, Todd Hunter, Grant Holcomb, Walter Cronkite, Walter Blake, Sidney Van Keuren, Ed Fitzgerald, Budd Small, William Ferrari, Richard Dixon, Rudy Butler, Frank Webster, Joel Moss, Robert B. Harris, Jack P. Pierce, Carmen Dirigo, CBS Television, The National Association for Mental Health, Inc.
Summary:
Uses a dramatized, "on-the-scene" news type of interviewing and documentary reporting to present the story of how Dr. Pinel fought for improved treatment of the insane. Describes his principles that the insane were sick people and should be treated as such, not as wild beasts. Shows some of the opposition he received from officials and the townspeople when he unchained the insane.

40. Drilling and tapping cast steel (18:58)

Date:
1941
Summary:
Technique of drilling and tapping blind holes in cast steel on a radial drill. A drill jig with loose bushings is used for locating the holes. Setting up the work on the table of the machine, setting the jig on the piece to the layout lines. Calculating the size of the tap drill and the method used when setting the machine to drill a number of holes to the same depth. A wizard drill chuck is used in the drilling operation, and a standard friction chuck for holding the tap. The action of a tap in a hole is shown in animation and the reason why a tap binds in the hole and must be reversed frequently when tapping in tough metals.

41. Duel at the OK corral : western legend (1:04:02)

Date:
1954
Main contributors:
William J. Thiele, William Bruckner, Jack Chertok, Lee Van Cleef, Kenneth Tobey, Henry Morgan, Keith Richards, Lyle Talbot, Peter Hanson, Teaching Film Custodians
Summary:
Teaching Film Custodians abridged classroom version of an episode of the Cavalcade of America television series, "Duel at the OK Corral" (season 2, episode 20), which originally aired March 9th, 1954 on ABC-TV. This film highlights the efforts of Marshall Wyatt Earp to free the West of dangerous armed gunmen. Earp's activities in Dodge City, Kansas, in Deadwood, South Dakota, and in Tombstone, Arizona are featured.

42. Durer and the Renaissance (13:55)

Date:
1961
Main contributors:
Beatrice Farwell, Paul Falkenberg
Summary:
Discusses the life of Durer and the pivotal point he represented in connecting the artistic development of Italy and Northern Europe. Presents examples of his work that show his passage from the Middle Ages to the Renaissance. Develops the idea that through a study of his work the fusing of his Gothic inheritance and the organic Renaissance can be observed.

43. Dynamics of solution (14:57)

Date:
1962
Main contributors:
Ellis Katzman, Elbert C. Weaver, John A. Skarulis, William H. Pasfield, Ross Lowell, Herman J. Engel, Robert Braverman, Peter Robinson, Geraldine Lerner, Max J. Rosenberg, Fisher Scientific Company
Summary:
Demonstrates the differences between saturated, unsaturated, and supersaturated solutions; that solutions are dynamic, not static in character; and also shows suspensions and colloidal dispersions. Presents characteristics of solutions and explains insolubility, solutions without chemical reactions, mixtures, suspensions, and the Tyndall effect in colloidal dispersions.

44. Essentials of good speech : colors 1 (11:00)

Date:
1974
Summary:
Discusses a well-known system for practicing pronunciation: articulation of consonants and enunciation of vowels. Emphasizes again more "parts" which are to be applied to "wholes." Shows how sounds are associated with a color code: blue for voiceless, red for voiced, and brown for nasal manner of articulation. Illustrates an early lesson at the "Presentation Stage" and introduces specific touch positions for color work.

45. Essentials of good speech : colors, 3 (11:10)

Date:
1974
Summary:
Discusses shaping the pronunciation of vowels and consonants. Depicts the teacher helping the pupil combine voiced and nasal consonants with long vowels. Also presents more difficult sound combinations, including short vowels.

46. Essentials of good speech : colors, 4 (13:16)

Date:
1974
Summary:
Demonstrates one pupil's accomplishment of the early goals of color work: pronunciation of vowel and consonant combinations. Depicts a pupil producing the majority of speech sounds on request, and imitating (shaping) some complex sounds: "SH", "R", "L", and "S". Discusses the application of "part" learning to the pronunciation of a new word, "talent," which the pupil sees in print.

47. Essentials of good speech : duration 1 (13:11)

Date:
1974
Summary:
Explains the contents of the Essentials of Good Speech. Discusses duration as an aspect of voice production and how it refers to the length of sound. Illustrates a lesson on duration at the "Presentation Stage" of Face A of the Speech Model. Shows the pupil learning a "part" (Duration) which will later be applied to a "whole" (word or words).

48. Essentials of good speech : duration 2 (13:46)

Date:
1974
Summary:
Presents a lesson at the "Imitation Stage" on duration, covering the "part" that will later be applied to a "whole" word or words. Depicts the shaping of the pupil's duration of vowels, using three levels of reinforcement.

49. Essentials of good speech : duration 3 (12:17)

Date:
1974
Summary:
Presents a lesson at the "Production Stage" on duration, an aspect of voice production. Depicts the pupil producing vowels of long or short duration on request. Points out how the knowledge and skill of the "part" learning of duration is then applied to the word "welcome." Demonstrates the use of verbal direction alone to help the pupil learn correct syllable duration in the word.

50. Essentials of good speech : loudness 1 (13:35)

Date:
1974
Summary:
Discusses loudness as an aspect of voice production and how it refers to the relative strength of sounds. Emphasizes loudness as "part" learning which will be applied to a "whole" word or words. Shows an early lesson at the "Presentation Stage" of loudness, including a technique for handling inattention.

51. Essentials of good speech : loudness, 2 (13:11)

Date:
1974
Summary:
Presents a lesson at the "Imitation Stage" on loudness. Demonstrates how to help a pupil correctly imitate loud and soft vowels through the process of shaping only one ingredient at a time.

52. Essentials of good speech : loudness, 3 (15:20)

Date:
1974
Summary:
Demonstrates the production of vowels using requested loudness on first trials. Depicts the pupil applying her "part" learning, loudness, to get proper accent on the word "mama" through verbal request alone.

53. Essentials of good speech : pitch 2 (12:00)

Date:
1974
Summary:
Presents a second lesson on pitch at the "Presentation Stage." Introduces hand signals used in association with extremes of pitch to help the pupil imitate extremes; these signals will be used later to cue her for correct pitch while she is talking.

54. Essentials of good speech : pitch 3 (10:01)

Date:
1974
Summary:
Demonstrates the guiding of a pupil to consciously produce the desired pitch of vowels through reinforcement of his correct imitations. Depicts the teacher assessing the pupil's natural pitch for the vowels (ü), (ä), and (ē), in one case making the child conscious of his naturally high (ü).

55. Essentials of good speech : pitch 5 (10:22)

Date:
1974
Summary:
Presents four lesson segments demonstrating advanced stages of pitch learning. Demonstrates, in the first segment, the production of vowels which move from low to high or high to low, and the production of combinations of loud, soft, high, and low-pitched vowels. Presents, in the second segment, the application of "part" learning of pitch to the correct general pitch by asking the pupil to lower his voice. Shows, in the final segment, the application of "part" learning of pitch to the intonation of the question, "Is it big?"

56. Essentials of good speech : pitch, 1 (13:25)

Date:
1974
Summary:
Discusses pitch as an aspect of voice production, and how it refers to the degree of highness or lowness of sound. Emphasizes pitch as a "part" which will be applied to "wholes." Presents a child's first lesson at the "Presentation Stage" of pitch, in which touch variations are introduced and explained.

57. Essentials of good speech : pitch, 4 (12:13)

Date:
1974
Summary:
Presents a pupil working at the "Imitation Stage" on pitch. Shows the pupil developing high vowels (ä) and (ē) from one naturally high vowel, (ü). Depicts a pupil being taught to sustain high vowels in moving in continuous voice from (ü) to (ä) and (ē).

58. Evening care (07:08)

Date:
1943
Summary:
Stresses that the obligation of each hospital corpsman in the Navy is to be cheerful and make each patient comfortable. Demonstrates an alcohol rub which will prevent pressure sores.

59. Future stars (09:05)

Date:
1937
Summary:
Mass exercise, tumbling, acrobatics, horseback riding, soapbox derbies, rowing, swimming and flying miniature airplanes.

60. Gage blocks and accessories (22:05)

Date:
1945
Main contributors:
Division of Visual Aids, U.S. Office of Education (Producer), Federal Security Agency (Producer), Ray-Bell Films, Inc. (Producer)
Summary:
Explains why accessories are used with gage blocks; shows how to inspect a plug gage, an adjustable snap gage, a profile gage, a ring gage, and a screwthread pitch; and shows how to build a height gage and scriber.

61. Gait and musculoskeletal disorders (34:15)

Date:
1960
Summary:
Illustrates abnormalities in gait caused by pain, structural defects and deformities, neuromuscular disorders, and a combination of these causes. Details technical symptoms of the gait and posture resulting from poliomyelitis, spastic paralysis, hypotrolic muscular dystrophy, distonia musculora, and dislocation of the hip, indicating the results of the Trendenburg, flexion, and other tests. Presents Dr. William T. Green of Harvard Medical School providing the narration for the examples and conducting the physical examination for each case stressing that careful observation of the gait is one of the key factors in diagnosis.

62. Gases and how they combine (22:01)

Date:
1962
Summary:
Shows some properties that distinguish gases. The volume of ammonia and hydrogen chloride that combine are measured quantitatively, and simple integer volume ratios are measured for the combinations of hydrogen and chlorine. Interprets these simple integer ratios in terms of Avogadro's hypothesis.

63. Genetic activity and chromosome chemistry (29:24)

Date:
1959
Summary:
Reviews the contributions of Mendel, the Hertwigs, and Miescher to our understanding of modern genetics. Discusses chromosome chemistry in terms of the cytological distribution of nucleic acids, the chemical composition of chromosomes in groups of isolated nuclei and in single nuclei the chemical content of salivary chromosomes and their bands. Compares cell activity with the DNA and RNA content of various giant chromosomes in insect larvae which leads to the conclusion that gene action can occur by the disproportionate increase in the amount of DNA or RNA. Lecture given by Dr. J. Schultz.

64. Genetic investigations (56:51)

Date:
1961
Summary:
Presents some of the steps and procedures involved in conducting controlled breeding experiments and shows the results of some genetic crosses. Introduces three important areas of genetic research. Illustrates bombardment of fruit flies with X-ray and shows some of the obvious mutations produced in these fruit flies. Pictures a schematic model of the DNA molecule and presents questions concerning its structure, organization, and duplication. Uses animation to picture basic discoveries of inheritance.

65. Genetic loads in Mendelian populations (28:43)

Date:
1959
Summary:
Portrays the frequency of mutants in the population gene pool as dependent upon their rate of origination and selection coefficient. Discusses the population fate of dominant lethals (retinoblastoma), dominant detrimentals (achondroplasia), and recessive lethals (juvenile amaurotic idiocy). Describes in detail the loads of mutations carried in natural populations of Drosophila pseudo obscura and in man. Points out the fact that while most mutants are detrimental in the normal environment of the species, some may be advantageous in a different environment. Lecture given by Dr. Th. Dobzhansky.

66. Genetics of Mendelian populations (29:49)

Date:
1959
Summary:
Explains the nature and importance of population genetics. Derives the Hardy-Weinberg equilibrium principle for Mendelian (cross-breeding) populations. Points out that though the Hardy-Weinberg law produces a static gene pool when it applies, mutation, selection, random genetic drift, and migration upset this equilibrium and cause gene frequencies to shift-these factors being, therefore, the principal causes of evolution.

67. Geografia de Sud America : los cinco paises del norte (11:18)

Date:
1959
Summary:
Descusses the economic concepts related to land, climate, and major resources in the countries of Colombia, Venzuela, and the three Guianas. Includes scenes of the people and of their ways of life, shows the many modern developments which industrialization has brought, and describes the type of government of each country. Collaborator, Donald D. Brand.

68. Geography of Australia (10:01)

Date:
1950
Summary:
Describes the physical geography of Australia and some of its natural resources, such as wheat, cattle, wool, and timber. Shows how the use of these natural resources has determined the development of the nation.

69. Geological influences on local plant distribution (16:55)

Date:
1958
Summary:
Shows the geological influence on local distribution of plants in the non-glaciated area of southwestern Wisconsin. Highlights many soil conditions and the variety of plants in their region. Categories each plant group shown and superimposes botanical names of each plant shown.

70. Germfree animals in medical research (19:22)

Date:
1960
Summary:
**WARNING: CONTAINS GRAPHIC IMAGES OF LAB TEST ANIMALS** Illustrates the basic techniques of obtaining germfree environment, germfree animals, and methods of germfree miantenance. Demonstrates the methods by which germfree animals may be obtained as with the chick from the egg and a guinea pig from a Cesarian operation. Concludes that thee techniques contribute in the field of immunilogical studies and in the study of tissue response to parasites.

71. Getting ready emotionally (11:04)

Date:
1951
Summary:
Sixth in the "Are You Ready for Service?" series. Shows the emotional stresses that must be faced in military service because of homesickness, having to take orders and responsibilities, and having to learn to kill. Advises young men to prepare for the new experiences by taking school assignments as orders, doing jobs well without arguing, taking temporary jobs away from home, and going to church.

72. Getting things done (29:48)

Date:
1961
Summary:
Do you like to live in a city? Or would you prefer to move to the suburbs and escape slums, juvenile delinquency traffic jams? Many people are moving to suburbs, and urban areas are growing until, on the east coast, there is in effect one continuous urban areas stretching from Washington, DC to Boston, Massachusetts. What can be done to reclaim the slums? How can industry be attracted back to an area it has deserted? The story of the development of the East Liberty area of Pittsburgh is told in detail, showing how effective private citizens can be if they wish. Once again other information on the solution offered by different groups and communities is made available –though much of the material in this program echoes comments and data from the previous program. But this, again, is an effective plea for the citizens’ concern for his community.

73. Geyser melodies (11:20)

Date:
1954
Summary:
Uses scenes of the geyser area of Yellowstone National Park to portray today's remnents of the earth's activities during formation. Introduces the theme that man has arrived too late to see more than this and presents the various geysers in play as the soundtrack provides an orchestral interpretation.

74. Give me liberty (20:57)

Date:
1941
Summary:
The scene is Virginia, 1765, just after the King's tax proclamation has been read and the legislature is in an uproar. Ensuing events lead to a protest meeting held by patriots at Richmond, at which Patrick Henry delivers his "Give me liberty" speech.

75. Giving the Rorschach test : Klopfer method (10:35)

Date:
1951
Summary:
Illustrates the procedure of administering the Rorschach ink-blot psychological test through a sample interview between a subject and an examiner. Shows the ink-blot first in its true form, then structures the pattern through animation to fit the concept as seen by the subject. Concludes with review questions concerning the administration of such a test.

76. Glaze application (46:58)

Date:
1949
Summary:
A skilled potter demonstrates the four methods of glaze application: dipping, pouring, brushing, and spraying. Specific techniques and good craftsmanship are emphasized. Proper preparation of a piece for glazing and precise finishing before firing are shown.

77. Globes : an introduction (54:03)

Date:
1963
Summary:
Pictures the globe as a model of the earth and points out the representative shape and color of land and water areas. Identifies the continents and compares their sizes and locations. Uses animation to show the character of the ocean floor. Explains the poles and scales of latitude and compares various types of globes.

78. Gossip (10:49)

Date:
1953
Summary:
Illustrates the detrimental effects of rumors through the experience of Jean, a newcomer in a high school, who becomes the victim of a malicious rumor started by Jack, her first date. After suffering considerable unhappiness, she is again accepted by her friends when her parents and the principal get Jack to confess and to tell the facts.

79. Gravity : the mighty pull (13:43)

Date:
1960
Summary:
Explains the basic principles of gravitational attraction that relate to the earth, and other planets, and the sun. Relates these principles to flights of rockets and artificial satellites and includes the experiments on weightlessness that is encountered by astronauts. Gives a number of practical examples from everyday life and explains the role of gravity in these situations. Concludes with three questions for children to solve.

80. Greek sculpture (22:52)

Date:
1959
Summary:
Reviews Greek history by showing pieces of sculpture from each historical period from 300 B.C. to A.D. 300 and the related architecture. Sculpture proceeded from small animals buried in tombs to large animals and then to undraped youth. Shows the various tools used by the early Greeks in sculpture. Concludes with a non-narrative viewing of various works of sculpture.

81. Gregor Piatigorsky (25:45)

Date:
1956
Summary:
Piatigorsky plays "Bourees #1 and #2" from Suite in C Major, by Bach; "Slow Movement" from Cello Sonata, by Chopin; "Masques" from Romeo and Juliet, by Prokofief; "Romance," by Anton Rubinstein; "Waltz," by Tschaikowsky; and "Introduction, Theme and Variations," by Schubert-Piatigorsky.

83. Grinding a slender shaft with back rest (16:29)

Date:
1947
Main contributors:
Division of Visual Aids, U.S. Office of Education (Producer), Federal Security Agency (Producer), Emerson Yorke Studio (Producer)
Summary:
Shows how to prepare the machine or the job; how to select and set up a back rest; how to adjust the back rest during grinding; how to rough- and finish-grind the long shaft; and how to check and adjust the taper.

84. Grinding a V-block (21:16)

Date:
1945
Summary:
Shows how to set up a V-block to grind the ends and the V; how to rough- and finish-grind the ends; how to establish reference points for grinding the V to precision dimensions; and how to check the work for accuracy.

85. Grinding and facing a blind hole (16:09)

Date:
1947
Main contributors:
Division of Visual Aids, United States Office of Education (Producer), Federal Security Agency (Producer), Emerson Yorke Studio (Producer)
Summary:
Shows how to mount and dress the wheels on the two-spindle grinder; how to prepare the diaphragm chuck; how to plunge-grind the bore and adjust for taper; and how to grind the shoulder and flange parallel at right angles to the bore.

86. Grinding multiple-point carbide tools (19:54)

Date:
1945
Summary:
Shows how to remove blades from inserted-blade type cutter; how to off-hand grind individual teeth; how to reassemble and align cutter blades; how to circle grind; how to surface grind all tooth-relief angles; how to finish surfaces and edges by honing; and how to inspect resharpened cutters.

87. Grinding single-point carbide tools (25:42)

Date:
1945
Summary:
Shows how to prepare the wheel for grinding; how to semi-finish and finish-grind a dull tool; how to rough-grind a chipped or broken tip; how to grind a newly brazed tool; and how to grind a chip breaker.

88. Ground controlled approach (32:47)

Date:
1944
Summary:
Shows in detail how a plane is directed to landing by the ground controlled approach team. Illustrates the principles of operation of the system, and shows the members of the GCA team in action.

89. Group ways of channelizing aggression (28:58)

Date:
1958
Summary:
The methods of directing and using aggression in children are demonstrated in studies of the Americans of the continental United States, the Kwoma of New Guinea, and the Alorese of the Dutch East Indies. We move from the creation of frustration in children through the expression of aggressive responses to the various ways the aggressive responses are directed and utilized. Dr. Bullock’s narration is closely linked to dance action and original musical effects. The types of stimuli that frustrate children are explained. As each example is followed to its logical end of aggressive behavior, one can understand the hit-and-run tactics of the Kwoma, the competitive spirit of the American, and the inferior and helpless feeling of the Alorese. The battle scenes presented at the end of the Kwoma and Alorese groups throw our concept of war into a new mental perspective.

90. Grouse of the grasslands (10:39)

Date:
1950
Summary:
Shows close-ups of the grouse as found in its wild state on the prairies and open farm lands of Missouri, including its habits and natural sounds. Shows a battle between two male grouse, then a courtship. Concludes with a plea to preserve nature's creatures in their proper balance.

91. Gulf Coast : the South's land of opportunity (14:53)

Date:
1963
Summary:
Describes the states of Texas, Louisiana, Mississippi, Alabama, and Florida as comprising the Gulf Coast region of the United States. Picture crops in Florida and explains that these crops are grown twelve months of the year. Contrast the varieties of soils found in the region. Briefly describes the large ports of Houston and New Orleans. Highlights the industires of the region including oil, grazing, and lumbering.

92. Gymnastics : fundamentals and techniques, part 2 (16:24)

Date:
1949
Summary:
Briefly reviews the history and present status of gymnastic competition. Gymnasts with varying degrees of skill are shown going through routines on the still and flying rings, the side horse, the low and high horizontal bars, and in the free exercise event. Slow motion is used to demonstrate some simple beginning moves as the commentator criticizes each execution.

93. Gyorgy Sandor, pianist (09:52)

Date:
1947
Summary:
An Academic Films presentation of the pianist playing Liszt’s Sixth Hungarian Symphony and Liebestraum. | Gyorgy Sandor plays Leibstraum and Sixth Hungarian Rhapsody, by Franz Liszt.

95. Heat as radiant energy (13:23)

Date:
1962
Summary:
Diagrams the position of radiant energy on the electromagnetic spectrum and describes several means of detecting radiant energy. Explains the operation of a radiometer, and illustrates the use of a thermister, thermocouple, and thermophile in detection of radiant energy.

96. Helen Tamiris in her Negro spirituals (16:44)

Date:
1959
Summary:
Illustrates modern dance as exemplified by Negro spirituals. Miss Tamiris creates her dances to the familiar spirituals Swing Low, Sweet Chariot, Go Down Moses, and Get on Board Lil' Children.

97. Here kitty (11:56)

Date:
1952
Summary:
Queenie, a cat, tells the story of her life in Mary's house. Mary first finds Queenie and takes her home to meet her family and another cat, Tom. When she is one year old Queenie has four kittens which she raises for six weeks. Mary then takes them to new homes nearby, where Queenie can visit them regularly.

98. High contrast photography for instruction (1:12:31)

Date:
1956
Summary:
Demonstrates the use of high contrast photography for the preparation of 2" x 2" and 3 1/4" x 4" negative and positive slides, transparencies, and overlays for overhead projectors and for printing on paper for use in opaque projectors. Shows the basic steps of setting up to photograph materials on high contrast film as well as the processing of the film. Illustrates the application of this type of photography in the preparation of instructional materials in a variety of subject-matter areas.

99. High temperature research (18:24)

Date:
1963
Summary:
Describes various phases of high temperature research, giving examples of compounds being used, goals of the research, and some results to date. Discusses procedures being used, with emphasis on procedures with titanium sulfide.

100. Highball highway (11:27)

Date:
1963
Summary:
Points out the danger of a drunk driver. Uses laboratory tests to show that the ability to drive diminishes in proportion to alcohol consumption. One man's experience is presented to stress the personal misery which can result from drinking before you drive.