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LIST OF EDUCATIONAL FILMS
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manner. "The Amber Soul," "Volta's Discovery," and the "Friction Ball," are the titles of the reels which make the complete story.
Number, Please — Telephone — N. C. R.
An interesting reel about the telephone and telephone service.
Radio Telephone, The — American Telephone & Telegraph Co., 195 Broadway, New York City.
Technical diagrams are used to explain the principles of the radio telephone — voice, light, and electric wave vibration — the oscillograph — construction and use of the vacuum tube explained — radio stations and broadcasting.
Rolling Steel by Electricity — W. E.
Steel making by the steam method and also the electrical method. The superiority of the electrical method is dwelt upon. Good photography and logical arrangement make this an instructive film.
Water Power — W. E.
This film made in cooperation with the Bureau of Mines shows the ancient and modern methods of using the energy of falling water — the generation of electricity by a turbine plant and the transmission of current at high voltages over long distances.
Westinghouse Works — 2 reels — G. E.
This film concerns itself frankly with the Westinghouse plant at East Pittsburgh. It presents to the visitor an instructive series of
views of the manufacture of electric articles, including a giant electric locomotive.
Yoke of the Past — 3 reels — G. E.
The Yoke of the Past is physical drudgery, and this film shows in an interesting manner how man's mind and his inventions have relieved him of the great labor of primitive methods and replaced it with the use of modern machinery.
Yours to Command — National Electric Association, New York City.
The service of electricity, a tireless and invisible servant; power and light as used by industries, commerce, and the home; its use in modern motion picture production.