See and hear : the journal on audio-visual learning (1945)

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ABOUT ONE HUNDRED AND FIFTY YEARS AGO, two Indians descended from the mountains to cross a flat, dry desert. As night approached, they stopped to build a tiny fire of brushwood which they had carried with them. As the fire burned low, an amazing thing happened. The ground began to smoulder and suddenly the desert burst into flame. What was this strange white rock xuhich ivould bum? Where was the desert? What had these Indians discovered? The white rock was Nitrate of Soda. It was found in the Atacama Desert of Chile. Thus a great and important industry was born. Chile's Nitrate Industry — Gift of a Desert This story of the discovery of Nitrate is only legendary. But the remainder of the story as portrayed in Hollywood Film Enterprises' new sound color film is accurate and interesting. Its content is an important contribution to an under- standing of Chile's economy and of her relationship with the rest of the world. It visualizes the mining, refining and transportation of that world-wide im- portant product — Nitrate of Soda. Write today for your free copy of a brochure describing this and fourteen other \6ntm instructional sound films in color, soon to be released. HOLLYWOOD FILM ENTERPRISES, INC. Educational Division 6060 Sunset Boulevard Hollywood 28, California