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

tional Film Board of Canada) TREES FOR TOMORROW (Sound) 18 minutes Describes man's management of America's great forest resources. Shows the many uses of wood. Dem- onstrates forest management througii planting, selective logging, and seed-tree patches. Explains the role of the forest ranger. (American Forest Products Industries) TREES TO TAME THE WIND (Sound) 11 minutes Details of the great shelterbelt of trees being developed in the west in an effort to reclaim land ruined by wind and drought. (USDA) VANISHING HERDS (Sound) 14 minutes The film shows how bison, elk and other game animals, once plentiful, have been almost exterminated, and what is being done in national for- ests to restore species of wildlife and protect them from extinction. (USDA) WASTED WATERS (Sound) 18 minutes TVA's unified development pro- gram in the Tennessee Valley. De- scribes progress made toward the im- provement of navigation, control of floods, provision for national de- fense, and generation of power. Re- veals how soil erosion is being.com- batted and how recreational de- velopment becomes a valuable by-product of such a unified pro- gram. (TVA) WEARING AWAY OF THE LAND (Sound) II minutes How land is affected by chemical decomposition, glacial movements, and wind and wave actions. Anima- tion depicting the formation of caves, the glaciation of North Amer- ica, and the reduction of the island of Helgoland. Examples of cave de- posits, glaciers, dunes, and aerial vieW'S of estuaries and wave-beaten shore lines. (EBF) WINDBREAKS ON THE PRAIRIES (Sound) (Color) 21 minutes The film shows how the Experi- mental Station at Indian Head cul- tivates acres of young trees for dis- tribution amongst farmers, in an attempt to remedy soil erosion, check the wind and influence rain- fall. (National Film Board of Can- ada) WORK OF THE ATMOSPHERE (Sound) 10 minutes Shows the effect of the mechanical and chemical actions of the at- mosphere on the earth's surface; Model RS-ND30 "DUILT like a fine watch — powered by a steady -*-* smooth-running motor and mechanism that purrs through reel after reel without a flutter or a jump — so simple, a 12-year-old can operate it — that's the new DeVRY I6mm. sound-on-film projector that gives you: The ultimate of sound, whether it be crisp, dear intelligible conversation, or the full majesty of sym- phonic music . . . clear ■ definition of image . . . uni- formity of illumination over the screen's entire surface . . . soft, natural brilliance that assures viewing com- fort because it is kind to the eyes. The new DeVRY is a 3-purpose unit: (1) that SAFELY projects both sound and silent films; (2) that shows BOTH black-and-white and color films without extra equipment; and (3) whose separately-housed 30 watt amplifier and sturdy 12-inch permanent magnet speaker afford portable Public Address facilities — indoors and out. DeVRY CORP., 1111 Armitage Ave., Chicago 14, 111. Make DeVRY'S new Film Catalog your source of 16mfn. sound and silent motion picture films . • • for sale or rent. i DcVRY CORPORATION SHJ-D3 I 1111 Armltaga Avanue, Chicago 14, Illinois " Please mail me catalog of Audio-Visual Teachina Equipment. Also your new 1946 Film CataioE. Only 5-TIME WINNER of Army-Navy "E" for the | *'''*'"""' prod uction of motion picture sound equipment \^ ^'^^ _ ___^^^____ J. areas affected by dust storms, and examples of spalling, exfoliation, sand blasting, dunes, loess banks, and volcanic dust. (EBF) WORK OF RIVERS (Sound) 10 minutes Provides examples of different forms of erosion, young and old riv- er valleys, deltas, oxbow lakes, me- anders, rejuvenated rivers, water gaps, alluvial fans, sandbars, the water cycle in nature, and flood control work. (EBF ) WORK OF RUNNING WATER (Sound) 10 minutes Analyzes the action of rimning wat- er as the most effective agent of erosion. Formation of alluvial fans, meanders, upward movements of the earth's surface, potholes, water- falls, cliffs, ledges, pillars, dikes, ar- royos, and desert lands are revealed. (EBF) * « * Build a Reference Library ♦ Every school should have a book- shelf of selected references on audio- visual methods and sources. Write the SEE & HEAR BOOKSHELF for a Bookshelf Plan. 157 E. Erie, Chi- cago (11). Write for full list. MARCH • 1947 43