Educational screen & audio-visual guide (c1956-1971])

AO OPAQUE DELINEASCOPE LIGHTER AND BRIGHTER AO's New High Speed Opaque Delineascope projects a brighter image than any other opaque projector. Improved, large-diameter, coated projection objective dehvers a full 145 lumens to screen. You have clearer image definition in tone, contrast and detail . . . from edge to edge, from corner to corner of the screen. And, it's lighter than ever... only 29 lbs. RIGHT SIDE CONVENIENCE New, modern styling and design places all adjustments on the right side of the instrument., .where they belong. You operate switch, focus knob, opitcal pointer and handy roll feed. ..quickly and easily. Extra deep copy platform positions and locks instantly at any desired level ...accommodates material up to 2'/2 inches thick. Every detail has been planned for your convenience. SERVICEABILITY Large hinged access door makes it easy to replace bulb and clean reflecting mirrors. All-glass reflecting mirrors will not tarnish or deteriorate. AO's exclusive glass reflecting surfaces plus sturdy "unitized "construction assure projection precision that will withstand vigorous classroom use. You can be sure that your AO Opaque will still produce the brightest screen image, even after years of service. American Optical Company mSTKUMINT »IVfSIO«4, ■urMLO tS, NIW TOtK Dept. R241 D Please send full information on AO's New Opaque Delineascope by return mail. D Please have my AO Sales Representative set up a demonstration. Name Address . — — — City _Zone_ _State_ IN CANADA writt— American Optical Company Canada Ltd., Box 40, Terminal A., Toronto, Ont. fact that theirs was not the first generation to experience "total war," and that the mechanization which proved so effective against France in the late 1930's was more than twenty years aborning. More specifically, they will recall, even though the film is not explicit as to reasons for our entry in 1917, that many Americans felt a real sense of danger to our own national security at that time. —Kenneth B. Thurston Land Of The Pink Snow (F b H Enterprises, 1543 Lewis Avenue, Billings, Montana) 24 minutes, 16mm, sound, color, no date. $225. Description An Indian legend of crystal clear lakes, of fish as long as one's arm, and of grasshopper glaciers foimd just beyond the Land of the Pink Snoic form the story background for this filmed report of a pack-trip into the Montana Rockies. The adventure begins in an Indian camp where an old chief explains in sig7i language (which the narrator interprets) of the extraordinarily large fish found in the lakes when in the past his people journeyed to this beiiutiful land. But he cautions the inquirers (a father, his two sons, and a guide) that the way is long, hard to follow, and very dangerous. They are told that using horse packs and on foot they could expect to reach the "Land of the Pink Snow" after four or five days. Before the chief completes his story he identifies several landmarks which can be followed. There will be a series of tall jagged peaks "reaching high into the heavens, a forest of trees as straight as Indian warriors, a mountain of grasshoppers," and before coming to a lake of beautiful fish, they must cross the "Land of the Lovely i Pink Snow." The campers' trip is then traced. They use horses for transportation and mules as pack animals to journe\ over the rivers, mountain trails and alpine meadows of the Montana Rockies. Several camp sites are shown in which the campers demonstrate proper hitching of animals and campfirt safety. These techniques are carefulK explained. The journey leads the small group j through the heavy timberland c scribed by the Indian chief. As theyj progress high into the mountains theyl come upon the glacier of grasshopf| (Continued on page 190) 1AR F.niTnATinivAT. Sr.RF.F.N and AUDIOVISUAL GuiDE — April, 196