The Educational screen (c1922-c1956])

SCHOOL DEPARTMENT 53 [jfurnishes an opportunity for social activities; tthe girls may have their sewing classes, and ithe boys, manual training. The cooking iclasses prepare the appetizing noonday lunch. i^A trained nurse sees that the periodicail exam'iinations of the teeth are made. *j At the close of the day, the busses are jdrawn up for the return trip home. The conIsolidated schools of Florence, Kansas, Oakley, Kansas, and Creslard, South Dakota, are the ones honored in the picturization. I The Electrical Transmission of Speech (1 reel) Y. M. C. A.— A Western Electric ifilm. Both science and physiology classes l,will be aided by this film. Animated drawings help to make the intricacies plain. Strong and weak currents are illustrated. The oscillograph permits a demonstration of the current variations produced by the carbon button. The armature is provided with a revolving iiiiiror. Vertical displacements of the light !)eam on the armature mirror show variations in current magnitude. In telephony, the carbon button produces current variations as the result of the action of sound waves. Sound waves of low and of high frequency are represented. Sound waves are re-enforced by resonating cavities. Complex sounds may be variously altered by resonance. Initial waves with super-imposed waves added produce complex waves. This is splendidly animated. The organs of the human voice comprise sound and variable resonating cavities. Speech involves a variety of complex sounds. In telephony, the variations of current are detected by an instrument known as the receiver. The human ear is the real receiver. Pictures of the outer ear, the ear drum, bones to transmit vibrations, eustachian tubes, the inner ear, fluid, and the auditory nerves all follow to elucidate the subject. It may be unnecessary to say that the presentation is technical and is too difficult for most pupils below the High School. For lasting impressions Show It! rELL them, and what you say is often soon forgotten. Show them and it will live. Pathe offers to you motion pictures suited to your needs, edited by specialists familiar with your problems, selected for specific purposes. 'Here are a few which we suggest; Pathe News Current Events Course; complete course of one reel per week, plus a quarterly one reel resume. Alaskan Adventures, 6 reels; wonderful scenery in the far north, with amazing views of wild animals. The birth of the icebergs, the Valley of Ten Thousand Smokes, the midnight sun, the break-up of ice in the Yukon. Nanook of the North, 6 reels; the classic of the Arctic, depicting the life and hardships of the Eskimo. Photographed by Robert Flaherty, F.R.G.S. World's Food Series, 5 reels; prepared with the co-operation of the U. S. Department of Agriculture. Educational Department PATHE EXCHANGE, INC., E.S. Amundsen's Polar Flight, the dramatic and unsuccessful attempt of the famous explorer to reach the North Pole by airplane; 2 reels. The World Struggle for Oil, 5 reels; the where and how of a major industry. Pathe Review, one reel weekly;the magazine of the screen covering travel, science, botany, animal life, customs, etc. Many subjects in Pathecolor. Recreational programs in great variety, including two-reel and feature comedies, feature dramas, etc., etc., including those in the Pictorial Clubs Library. National service. There's a Pathe exchange near you. All films in good condition. 35 W. 45th St. New York Gentlemen: Plese send me free catalogue listing all Pathe Pictures of educational nature. Name Address E. S. 1 Please Say You Saw the Advertisement in The Educational Screen