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FILMSTRIPS 279 Protection of Photofluorographic Personnel U.S. Public Health Service, 194?. Haz- ards of photofluorography; how to de- termine and avoid excess radiation; proper placement of equipment and operator. For photofluorographic oper- ators, nurses, and assistants. (50 frames) 26 Pruning Southern Pines U.S. Department of Agriculture, 1940. How, why, when, and what kinds of trees to prune; value of pruning in lum- ber production. (65 frames) 39 Pulling and Installing Cable and Packing Terminal Tubes U.S. Office of Education, 1945. (Ship- building Skills Series. Marine Electricity No. 4) Reviews material presented in motion picture, same title. (OE 113; 34 frames) 41 Purpose of First Aid U.S. Department of the Navy, 1942. (First Aid Series) Purpose of first aid and applications. Straight photography, titles and drawings. (SN 215; 51 frames, synchronized disc, 8 minutes) 41 PVA Fixative Technique in the Diag- nosis of Amoebiasis U.S. Public Health Service, 1950. How to use PVA fixative: preparation of PVA fixative; preserving specimens; staining smears; and, shipping specimens. (CDC- 5-153; 65 frames, color) 27 "Q" (Query) Fever U.S. Public Health Service, 1950. Na- ture, diagnosis, and control of "Q" fever; animal infection; transmission; descrip- tion of disease; diagnostic tests; control procedures. For medical and veterinarian personnel. Supplementary slides, same title, also available. (CDC-5-156; 90 frames, color, synchronized disc, 9 min- utes) . 27 Quieting a Noisy Refrigerator U.S. Office of Education, 1945. (Refrig- eration Service Series. Domestic Units No. 10) Reviews material presented in motion picture, same title. (OE 447; 32 frames) 41 Quiz: Hand Spraying of DDT U.S. Public Health Service, 1946. (Ma- laria Control Series) Thirty-two illus- trated questions reviewing material pre- sented in filmstrip, "Hand Spraying of DDT." (CDC-5-007; 36 frames) 27 Quiz: Mixing of DDT Emulsions U.S. Public Health Service, 1945. (Ma- laria Control Series) Nineteen illustrated questions reviewing material presented in filmstrip, "Mixing of DDT Emulsions." (CDC-5-009; 23 frames) 27 Quiz: Power Spraying With DDT U.S. Public Health Service, 1945. (Ma- laria Control Series) Twenty-two illus- trated questions reviewing material pre- sented in filmstrip, "Power Spraying with DDT." (CDC-5-008; 26 frames) 27 Quiz: Safe Practices in Handling DDT U.S. Public Health Service, 1945. (Ma- laria Control Series) Eight illustrated questions reviewing material presented in filmstrip, "Safe Practices in Handling DDT." (CDC-5-010; 13 frames) 27 Rabbeting and Shaping an Edge on Straight Stock U.S. Office of Education, 1945. (Preci- sion Wood Machining Series. Opera- tions on the Spindle Shaper No. 1) Re- views material presented in motion pic- ture, same title. (OE 318; 50 frames) 41 Rabbit Raising U.S. Department of Agriculture, 1949. How to breed and feed the domestic rabbit and market its meat, pelts, and wool. Suitable for small back yard rab-