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FILMSTRIPS 301 lection in area. (36 frames: single; also double) 39 Wildlife and Soil Conservation U.S. Department of Agriculture, 1947. How farmers can increase and protect wildlife for crop protection against pests, and for recreation, game, and marketing; improve land pattern for travel lanes and plant wasteland for wildlife shelter and food. (58 frames: single; also double) 39 Wildlife Management Through Soil Conservation in the Northeast U.S. Department of Agriculture, 1939. How engineering practices and planting save land, making useless land a refuge and source of feed for wildlife. (50 frames) 39 Wind Erosion: Its Control on the Southern Great Plains U.S. Department of Agriculture, 1937. How erosion starts and the destruction caused; how to prevent and control it with soil and water saving practices. (45 frames) 39 Wing Assembly: The Bow Tip U.S. Office of Education, 1944. (Aircraft Work Series. Wood Fabrication No. 6) Reviews material presented in motion pic- ture, same title. (OE 284; 36 frames) .... 41 Wing Assembly: The Inboard Panel U.S. Office of Education, 1944. (Aircraft Work Series. Wood Fabrication No. 5) Reviews material presented in motion picture, same title. (OE 300; 35 frames) 41 Wing Assembly: The Nose Section U.S. Office of Education, 1944. (Aircraft Work Series. Wood Fabrication No. 4) Reviews material presented in motion picture, same title. (OE 299; 44 frames) 41 Wire Sizes and Voltage Drop U.S. Office of Education, 1945. (Electri- cal Work Series.. Wiring) Reviews ma- terial presented in motion picture, same title. (OE 372; 26 frames) 41 Wiring Old Buildings with Armored Cable UJS. Office of Education, 1945. (Electri- cal Work Series. Wiring) Reviews ma- terial presented in motion picture, same title. (OE 379; 38 frames) 41 Wiring Telltale Panel U.S. Office of Education, 1945. (Ship- building Skills Series. Marine Electricity No. 6) Reviews material presented in motion picture, same title. (OE 115; 49 frames) 41 Worms In Your Muscles U.S. Public Health Service, 1948. Life cycle of T. spiralis; medical implica- tions of trichinosis; control measures and consumer preventive measures. Photo- graphs, drawings and photomicrographs. Sub-professional. (CDC-5-095; 52 frames, synchronized disc, 10 minutes) 27 Wound Rotor Controllers U.S. Office of Education, 1945. (Electri- cal Work Series. Motor Control No. 4) Reviews material presented in motion picture, same title. (OE 391; 40 frames) 41 Wounds. Part 1 U.S. Department of the Navy, 1942. (First Aid Series) How to stop bleeding and prevent infection. Straight photog- raphy, titles. (SN 220-a; 50 frames, syn- chronized disc, 10 minutes) 41 Wounds. Part 2 U.S. Department of the Navy, 1942. (First Aid Series) How to treat abra- sions; clean animal and snake bites. Straight photography, titles, drawings. (SW 220-b; 49 frames, synchronized disc, 11 minutes) 41 X-Ray Inspection U.S. Office of Education, 1944. (Engi- neering Series. Materials Testing No. 1)