Emphasizes the importance of proper punctuation and its basic rules. Tom and Beth, showing scenes of their puppet show, find that without punctuation, meanings become altered and their puppet story cannot be understood. 12:01:07:29 – 12:02:22:02 B/W w/sound 1948; Educational film about punctuation. Music, credits. VO male narrator. Classroom scene inb elementary school – American [...]

Presents experiments with electrolysis, boiling and freezing points, distillation, solutions, crystalization, filtration and pressure cookery. Analyzes the properties of water.

Demonstrates and appraises all types of programs, good and bad, which make up radio today. It captures humor and stimulates critical thinking. Appraises all types of radio programs and includes glimpses of actual shows such as Jack Benny, Toscanini, sports, news, etc. The value of quiz programs and soap operas is questioned and other types [...]

Presents the historical background of the theorem. Includes a detailed discussion of an interesting use of the 3-4-5 triangle by the Egyptians. The basic importance of the theorem is stressed.

Contrasts the efficiency of the typist who makes the proper preparation with one who plunges in with no preparation. Lists steps to take in getting ready to type, such as placing materials conveniently, adjusting machine and chair, and exercising the fingers. B/W 1947Instructional film about typing.00:10:23:00 B/W 1947Woman enters empty classroom. Classroom has a covered [...]

Pictures wild life in the national forests. Illustrates the work of the national forest service in the conservation of wild life, particularly the attempt to balance wild life population and the available food supply.

Shows some applications of the idea of ratio in various real life situations. The relationship between a ratio and a proportion is clarified. The “Product of means equals product of extremes theorem” is covered in detail.

Explains current and voltage in relation to time and discusses voltage and current curves, the relationship of current and voltage, the measurement of voltage at source, the addition of phase components and the effect of impedance on resonance.

Cast (in alphabetical order) Louis Adlon …. Maj. Franz Kohmer Frederic Brunn …. German yard guard Hans von Morhart …. Undetermined role (unconfirmed) Rand Brooks …. Pilot (uncredited) George Dolenz …. Maj. Franz Komer (uncredited) Poldi Dur …. Nazi nurse (uncredited) Carl Esmond …. Maj. von Behn [...]