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Stresses the practice of the learned skill, proper tongue blunting, as a first step in learning "SH". Shows the pupil, now correct approximatley 75% of the time, being given a homework assignment, with his parents evaluating his practice.
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.
Presents the teacher collecting evidence of correct automatic production of all five nuclei words in general speech situations. Transfers skills learned on Face A to all words containing "SH" at Face B of the speech model. Follows the pupil as he progresses to Face C of the speech model, generalizing skills from Face A and B to analogous areas of speech, in this case the correct pronunciation of "ZH", "CH", and "J". Shows the pupil working at the "Presentation Stage" of Face C for "ZH" through the GLGSP.
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.
Employs animation and live-action photography to show the development of man's knowledge of magnetic force, present-day concepts of the earth's magnetic field, and how the magnetic field is influenced in internal and external forces. Traces the historical development of man's knowledge of magnetism from the early Greeks through Oersted, Ampere, Faraday, to 1960, the present theories relative to the source of the earth's magnetic field and the techniques of measurement employed.
Deals with the approximation that light travels in straight lines and shows four ways in which light can be sent--diffraction, scattering, refraction, and reflection. Diffraction is shown using point light sources, a wide screen, and a variable slit. Scattering is observed in a smoke-filled box. Refraction and reflection are shown using an optical tank and also an under-water camera to observe the appearance of several swimmers sitting alongside the pool; effects illustrated include image displacement, the critical angle, and total internal reflection. Concludes with the problem of why the images produced by three pinholes merge into one when intercepted by a lens. Demonstrations by Elbert R. Little, PSSC.
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.
Assesses the automatic and conscious production of a phrase. Depicts a teacher using the synthetic approach to begin a correction of the "whole" word, "welcome". Observes the child moving from "Presentation Stage" to "Imitation Stage" of Face A of the speech model. Examines the ability of the pupil to discriminate the difference in accent between her production (wel kum) and the correct accent (wel km). Shows the teacher using a discriminating activity, interweaving touch, vision, and auditory discrimination.
Works on the second nucleus word, "show", on Face A of the speech model through the "Production Stage". Shows evaluation and practice on all five nuclei words at the no-error level of practice at the "Production Stage" of Face A. Includes one GLGSP expanding language.
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).
Demonstrates teaching devices which can be employed to help the deaf pupil with step 1 of learning to pronounce the SH sound: three devices for tongue blunting, one device for keeping the tongue tip placement centered during blunting, and three devices for maintaining a high wide tongue during blunting.
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.
Continues the shaping of the production of the element (km) to become weak. Depicts a pupil achieving a second approximation [making (km) very short], and later moving from High-Error to Low-Error to No-Error practice. Demonstrates the General Language: General Speech Pattern.
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.
Sets forth the incorporation of "SH" into words. Takes five nuclei words through Face A of the speech model. Demonstrates work on the first word, "she," from "Presentation, Imitation, and Production Stages" including carry-over devices and no-error level of practice. Uses one teaching device to review "SH" in isolation as well as one GLGSP in the language area.
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.
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).
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.
Discusses the GLGSP as an integrative device for the general teaching of language and speech so that every communication between pupil and adult can be made a learning situation for language or speech or both. Presents five steps a teacher can use in understanding what a pupil has said.
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.
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?"
Continues synthetic practice of the "whole" word, "welcome", narrowing to analytic work on the second syllable (km). Shows the teacher shaping (km) toward correctness: weak form of the syllable, i.e., soft, short, nasal emission on (km). Then pupil works at the "Presentation and Imitation Stages" on Face A of the speech model.
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.
Examines carry-over practice involving habituation of the correct accent and intonation of the entire phrase. Demonstrates carry-over practice given through the General Language: General Speech Pattern by the teacher in the language lesson, by other teachers in a nursery school, and by parents at home. Concludes with a pupil automatically using the phrase correctly in a general situation.
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).
Demonstrates the incorporation of the "part" (weak second syllable) back into the "whole", "Welcome." Depicts the teacher attempting to get proper intonation on the word through (a) shaping and (b) general practice. Presents an assessment of the automatic production of the phrase.
Continues to practice, as well as working on the whole phrase incidentally. Evaluates the automatic production of the entire phrase. Includes five examples of use of the General Language: General Speech Pattern unrelated to specific work on (km).
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.
Focuses on "CH" and "J" at Face C of the speech model through the GLGSP in classroom situations as the sounds arise incidentally in words. Shows the pupil working at the "Production Stage" of "CH" and the "Presentation Stage" of "J". Concludes the learning session, which began at Face A when the pupil started the in-depth work on "SH" as a single sound.
Shows how to select and lay out stock to avoid waste; how to reverse curves to contour lines; how to use the table tilting gage; how to saw a bevel reverse curve; how to prepare a template for a newel post; and how to saw a newel post having reverse curves.
Crown Film Unit, British Information Service, South African Bureau of Information
Summary:
A British production reporting on the contribution of South Africa, a sovereign Dominion of the Commonwealth, to the Allied war effort. Declares that the former antagonism between races - Dutch, English and Bantu - has been overcome. "This film opens with a brief outline of the country, showing how it is a land of contrasts in farming, living, worshipping, trading and in transport, and tells how South Africa made her own decision to enter the war and how she backed that decision. With the help of the British Admiralty, a navy was built up to defend the coastline , and RAF experts aided in South Africa's Air Training Scheme" (The Educational Screen, February 1944, 92).
How to select the correct arbor; mount the work head; adjust the work head for clearance settings; and set up for sharpening the outside diameter, corner, and face.
Portrays the frequency of a mutant in the gene pool as reaching a state of equilibrium when, per generation, its origination by mutation equals its elimination by genetic death. Discusses genetic death and presents examples of how genetic loads are changed subsequent to radiation exposure. Pictures the great majority of mutants as harmful when homozygous, but some cases, as in sickle call anemia, heterozygotes are adaptively superior to normal homozygotes. Explains balanced polymorphism, by which a gene is retained in the population despite its lethality when homozygous because of the advantage it confers when heterozygous. Lectures given by Dr. Thomas Dobzhansky.
Discusses the role of heredity and environment in determining the sex of various organisms. Indicates that in some organisms it is the environment in which a given genotype functions that determines whether differentiation shall occur as male or as female. This is exemplified by sex determination in certain snails, mosses, and worms. Portrays a difference in genetic constitution as primarily responsible for sex determination in other organisms as for a unicellular plant (Chlamydomanas), certain grasshoppers, Drosophila, man, and the mouse. Discusses the genetic basis for sex mosaics (gynandromorphs) and indicates the influences of the "y" chromosome in determining sex in man. Lecture by Dr. C. Stern.
Portrays sex as a polygenic trait which may be considered to be determined by the balance of genes on different chromosomes. This view is substantiated by the work of R. Goldschmidt on the gypsy moth and its intersexes, and is most clearly demonstrates in Bridges' studies of different sex types in Drosophila. Discusses sex determination and the role of hormones in sex differentiation in the case of man. Depicts the human sex ratio and the cause of significant deviations in it from normality, and discusses the possibility of controlling sex by separating male and female producing sperm. Lecture by Dr. C. Stern.
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.
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.
Shows various types of micrometers; how to use a micrometer, read the barrel and thimble scales, check the accuracy of readings, and take care of the instrument.
The third film in a five-film series, this film illustrates how pre-school children use the forms and arrangements of the words of their language to convey meaning. This is the grammar of the language. This film shows how patterns of organization differ from language to language and are based not so much on logic as on customs and conventions peculiar to each language. A class in German shows how grammatical patterns and their variations are taught by modern methods.
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.
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.
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.
Shows the parts of a single ram vertical machine; how to interpret the blueprint of a broaching tool; how to install broaching inserts for straddle broaching; how to mount the toolholder with its assembled broaching tool; how to mount and adjust the work fixture; and how to surface-broach at production rate.
Demonstrates independent segregation by different pairs of genes using Mendel's data. Emphasizes the chromosomal activities during meiosis which are responsible for independent segregation. Describes the Punnett Square and the branching track methods of combining gametes at random. Discusses test crosses and linkage (as the exception to independent segregation), and shows that independent segregation proves the separability of the germ plasm into many gene pairs. Depicts the role of genetic recombination in speeding the process of evolution. Lecture by Dr. E. Altenburg.
Pictures reproductive isolation originating through interspecific hybridization, via amphyploidy (radish-cabbage, new world cottons, goatsbeard species), and by means of introgression (tobacco, rose family, maize-teosinte), and by the direct recombination of the products of crossing and the establishment of recombinations (larkspur). Specifies ways in which natural selection can aid reproductive isolation directly or indirectly. Depicts hybridization as a powerful stimulus in species formation and as a valuable experimental tool for the study of the genetic basis for species differences. Lecture given by Dr. G. L. Stebbins.
Discusses the effect of various levels of inbreeding (self-fertilization, sib matings, half-sib matings, cousin marriages) upon making heterozygous genes homozygous with the consequent loss of vigor. Presents data for the increased risk of genetic defect from cousin marriage in studies of phenylketonuria, of a Japanese population and a French population. The concept and estimation of lethal equivalents are given. Shows how increases in heterozygosity increase vigor (heterosis); hybrid vigor in corn in described in detail. Lecture given by Dr. J. F. Crow.
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.
Demonstrates through slow motion and natural photography the positions and movements of the "Hoosier Promenade." Opens with a group of eight dancers performing the introduction to the dance. Shows each pair of dancers, identified by a number, demonstrating the different parts of the dance and how each step flows smoothly into the next. Concludes with the performance of the dance to a record.
Uses animation, slow motion, and real photography to demonstrate the positions and movements of dancers and dancing couples in the "grapevine twist." Shows each part of the dance separately and then shows how each step flows smoothly into the next as the dancers perform to synchronous music.
Teaches the square dance figure "Take a Little Peek," with synchronous music and action. Presents live and animated demonstrations of the dance at regular speed and in slow motion, and explains the positions of partners, how to honor corners and partners, and how the steps are performed to facilitate the continuity of the dance. Pictures groups dancing the figure to regular square dance music in a natural situation.
Demonstrates through slow motion and natural photography the positions and movements of the "Texas Star." Opens with a group of eight dancers performing the introduction to the dance. Shows each pair of dancers, identified by a number, demonstrating the different parts of the dance and how each step flows smoothly into the next. Concludes with the performance of the dance to a record.
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.
United States. Department of Interior. Division of Motion Pictures
Summary:
Recounts the history of land ownership by small farmers in the U.S. Free land for farmers gradually disappeared as the west was settled through the 19th century, resulting in the necessity for farmers to buy land with mortgages. Describes the creation of the 1916 Federal Farm Loan Act and regional land bank systems to enable tenant farmers to become landowners. "Shows how the cooperative mortgage credit system works in the everyday lives of John and Mary Farmer, who are typical of the 600,000 members of national farm loan associations now using their own credit system to achieve the goal of owning debt-free farms" (Motion Pictures of the United States Department of Agriculture, 1945, 21).
War Activities Committee of the Motion Picture Industry : distributed and exhibited by
Summary:
A short bulletin urging people to travel only when absolutely necessary in order that space can be saved for millions of troops and millions of essential civilian war workers. States that every non-essential traveler may be preventing a serviceman from joining his family during the holiday season. Civilians are told "on every highway and mainline, war has the right of way" and "we've got a battle of transportation to win here in the U.S., you can help to win it just by staying home."
An in-service business management film demonstrating the problems which develop when a supervisor fails to properly channel the initiative of a new worker thus creating resistance to new ideas.
Describes the problems that man has to face in space travel. Head and cold, gravity changes, and meteor showers are explained. Newton's principle of rocket propulsion is also introduced.
Pan American Airways promotional tourism film for South America. Highlights include Panama Canal, European influence in Ecuador, Inca history of Peru, Machu Pichu, Bolivian farmland, Chilean vineyards, Argentinian ranches, beaches of Uruguay, and Brazilian carnival.
Demonstrates the importance of rules in human relationships by dramatizing the fulfillment of a wishful dream of four children, of being able to live without rules or adult authority. Shows the children alone on an imaginary island, without rules, where they discover that it is impossible to play games or to do anything requiring group cooperations, and realize the advantages of having parents, doctors, and others in authoridy to help when problems or emergencies arise.
Describes the experiences of Kay as she enters the home economics program at Iowa State College. Portrays the practical training that students receive, and suggests a variety of careers open to them. Shows the advantages of such training for future family life and the contribution college experiences make toward enhanced personal development.
Dr. George W. Crouch, Professor of English and Chairman of the Departmental Committee, act as discussion moderator for Dr. John W. Dodds, Dr. Glenn A. Olds, Director of Religion, Cornell University; Andrew C. Ritchie, Director of Painting and Sculpture at the Museum of Modern Art, New York, and Roger Sessions, Professor of Musicat Princeton University, discuss the place of the humanities in the new dimensions of learning of the twentieth century.
Sergei M. Eisenstein, William F. Kruse, Egon Mauthner
Summary:
Documentary film by Sergei M. Eisenstein, famous Russian movie producer, about the Zapotec Village in Mexico. Made by special arrangement with Upton Sinclair, American author and politician.
Limited to a Bolex, a tripod, a light meter, and 100 feet of Kodak 16mm B&W reversal film, we captured the film digitization phase of the Media Digitization and Preservation Initiative (MDPI) at Indiana University in Bloomington, IN. The film was shot in chronological order of the MDPI film digitization process and all editing was done in camera.
Animation and a musical background are used to locate incenters, circumcenters, centroids, and orthocenters in a number of triangles. The film was created on the Tektronics 4051 Graphics Terminal.
A presentation of two of the first feature films in history, with the addition of sound. Bandits tie up the station master, stop the train, rob the mail car, take the passenger's valuables, and then escape, and the station master's daughter frees her father, alerts a group at a dance who then chase and overtake the robbers.
African safari hunters use pits and nets to capture lions, tigers, and other ferocious beasts of the jungle, placing them in cages for transportation to circuses to be "trained" for public entertainment.
This stunning Pan Am Airlines travelogue of Paris and France was directed by Harry L. Coleman, and features images of the "City of Lights" from the late 1950s. These include standard tourist fare such as the Notre Dame Cathedral, Eiffel Tower, Versailles, The Louvre, Arch of Triumph, Seine River, Montmartre, etc. to images of everyday life in the bustling city -- with its cars, motorbikes and bicycles -- the bird market of Sacre Couer, and the Paris flea market. A visit to rural areas beyond Paris includes Brittany, the winemaking regions, Champagne, Mont Blanc and the French Alps.
Presents conferences held by the United Nations leaders in the Atlantic, at Casablanca, Quebec, Moscow, Cairo, Teheran, Bretton Woods, Hot Springs, Dumbarton Oaks, and Yalta.
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 due to lack of motivation, a mild electric shock is supplied and the satiated animal becomes active and learns to strike a lever which turns off the shock. Shows the animal also learning to rotate a wheel, bite a rubber tube, and strike another animal to avoid electric shock.
Shows how to identify and use common bench molder's tools; how molding sand is prepared; how to face a pattern; how to ram and vent a mold; how to roll a drag; how to cut a sprue, runner, gates and riser; how to swab, rap, and draw a pattern; and, by animation, what takes place inside a mold during pouring.
Develops concepts of electrical pressure, current, and resistance, and establishes the need for the measurement of electricity. Demonstrates the measurement of electrical pressure and current flow, shows the development and use of Ohm's law in calculating electrical relationships, and discusses the importance of fuses as a safety measure.
Depicts a whale hunt in the Indian Ocean off the coast of South Africa. Shows life on board the whaler and events preparatory to the finding and killing of these mammals. Explains that whaling is an important industry centered at the port of Durban in South Africa.
Shows how one small Turkish village profits by the acquisition of a tractor imported through the Marshall Plan, and benefits from mechanical training provided young farmers as part of Turkey's recovery program.
Follows a car thief, played by an actor, as he steals cars and offers recommendations to the spectator on how to protect their car. Includes footage of various people looking through documents, reenactments of cars being stolen and owners being upset when they realize what's happened, the process of car owner alerting police to theft, being interviewed by police, and police searching for the car; car being broken apart at chop shop; tips on what car owners can do to reduce the chances that their car will be stolen; women looking at microfilm machines; shot in and around Indianapolis; ends with car their behind bars.
"This film is an illustrated narrative of the method of preparing any home for a "black-out". It illustrates the vital importance to every family of knowing what to do and just how to do it. No details are omitted and the instructions are clear and well illustrated. Preparation of a shelter room is described and illustrated."--Frank Frankowiak, "Analysis and Evaluation of 16mm Motion Pictures Library Available at Indiana State Teachers College" (thesis), June, 1948, 109.
Uses live-action photography, illustrations, and art work of the period to present an account of the building of the first transcontinental railroad and emphasizes the role of the railroad builders in the westward expansion of the United States. Reviews the problems and delays attending the building of the railroad.
Shows how some of the crystals in limestone caves are formed and then pictures by time-lapse cinephotomicrography the crystallization of the commonplace substances and chemicals. Depicts briefly the work of speleogists and the importance of water in the formation of cave crystals. Shows the formation of microscopic crystals of salt, alum, cough syrup, zinc acetate, oxalic acid, and ammonium chloride and the appearance of some of them under polarized light.
Pictures and describes the regional campuses of Indiana University, pointing out their function and relationship to the University as a whole. Shows activities at the campuses, both inside the classroom and out. Emphasizes the educational opportunities offered the citizens of Indiana through the regional campuses.
**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.
Explains and simulates the formation of sedimentary rock, focusing on the importance of limestone as a natural resource. Locates limestone quarries on the map and shows how the stone is quarried in blocks to be cut in desired shapes. Discusses the many aspects of limestone byproducts, including water purification, soap making, medicine preparation, and the manufacture of Portland cement, paint, paper, and steel.
Reviews the pre-game and half-time performances of the Indiana University Marching Hundred and Marching Hoosierettes during the 1958 football season. Includes the program of the 1958 High School Band Day. Performances from the Miami (Ohio) University game, High School Band Day, Michigan State game.
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.
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.
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).
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.
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).
The Signal Corps : produced by, Combat film units of Marines, Army Airforces, United States Navy
Summary:
Addressed to "the men and women of American Industry," the Film Communique series reports on military accomplishments to an audience of domestic workers producing materials for war. Comprised of six short segments:
This Isn't War … It's Murder! Reports on the island conquering campaigns in the Pacific theater, using combat footage to illustrate the contributions of "the silent partners in this combined operation" - those of the industrial workforce at home.
General Mud gives an account of the struggle against severely muddy conditions in Italy; shows the necessity to construct new roads before armies can advance.
Grasshopper profiles the super-lightweight reconnaissance airplanes used to direct artillery fire to enemy targets. The narrator states "they're the controlling might that gives precision for our war weapons equal to the precision with which our workers forge them at home, they're the grasshoppers that make the American eagle free."
Yankee Rope Trick profiles the resourcefulness of American soldiers in the successful rescue of a grounded transport ship.
Pipes Of War shows the construction of oil pipelines across Italy to bring fuel from tanker ships to the front lines quickly and efficiently. Documents the vast consumption of fuel to keep the invasion of Europe advancing.
Stella tells the story of an American bomber that lost 3 of its 4 engines on its mission but still managed to limp back to England. After the bomber has undergone complete repair, commentary states "every month 500 other battle damaged planes like Stella climb back into the air."
National Film Board of Canada, Crawley Films Limited
Summary:
A Canadian film production addressed to U.S. audiences, showing the industrial and commercial cooperation between the two nations as it occurs throughout the Great Lakes. "The Great Lakes are shown as a great industrial region with an immense amount of diversified cargo flowing along the shipping routes that lie between Canada and the United States. It is the shipping theme that links together short sequences on the industrial life of the Great Lakes: steel production, pulp manufacture, ship-building, grain storage, and the workings of the huge locks of one of the most vital canal systems in the world" (National Film Board of Canada catalog record http://onf-nfb.gc.ca/en/our-collection/?idfilm=17015)
