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FILMSTRIPS 255 Identification of U.S. Genera of Adult Female Mosquitoes U.S. Public Health Service, 1948. (Ento- mology Series) Essential morphological characteristics and methods used in identifying the 11 genera of U.S. adult female mosquitoes. Titles and drawings. (CDC-5-015; 92 frames, color; also b&w, synchronized disc, 15 minutes) 27 Identification of U.S. Genera of Adult Ticks U.S. Public Health Service, 1950. (En- tomology Series) Introductory taxo- nomic information: methods of distin- guishing ticks from other anthropods and schematic key of distinguishing morpho- logical characters of 11 genera of U.S. adult ticks. (CDC-5-130; 81 frames, synchronized disc, 14 minutes) 27 Identification of U.S. Genera of Mos- quito Larvae U.S. Public Health Service, 1947. (En- tomology Series) How to recognize mos- quito larvae for genera identification by larval habitat, general structure, and stages of growth. Photographs and draw- ings. (CDC-5-442; 103 frames, color, synchronized disc, 18 minutes) 27 Identification of U.S. Species of Ano- pheles Larvae U.S. Public Health Service, 1950. (En- tomology Series) Taxonomic informa- tion; how to distinguish Anopheles larvae from larvae of other mosquitoes and aquatic insects. Schematic key of im- portant characteristics of each species. (CDC-5-061; 78 frames, synchronized disc, 16 minutes) 27 Identifying and Precutting Cable U.S. Office of Education, 1945. (Ship- building Skills Series. Marine Electricity No. 3) Reviews material presented in motion picture, same title. (OE 112; 26 frames) . 41 Identifying Pathogens U.S. Public Health Service, 1950. (An Introduction to Bacteriology Series No. 2) Title self-explanatory. (CDC-5-175; 64 frames, color, synchronized disc, 9 minutes) 27 The Ignition System U.S. Coast Guard, 1942. (Internal Com- bustion Engines Series) Construction and operation of coil, condenser, breaker points, distributor, and spark plugs. (68 frames) 41 In Hot Water U.S. Public Health Service, 1945. (Our Health in Your Hands Series) Shows how to wash, handle, and store dishes. Covers both hand dishwashing and the operation of dishwashing machines. For food handlers and sanitarians and gen- eral public. (75 frames, synchronized disc, 15 minutes) 26, 41 In Self Defense U.S. Public Health Service, 1946. (Ma- laria Control Series) Diagnosis of ma- laria remedial measures; homes of chronic sufferers; self defense measures; and, improved economic conditions re- sulting from malaria control. Popular treatment. Cartoons. (CDC-5-016; 68 frames, color, synchronized disc, 14 min- utes) 27 The In Vitro Test for Virulence of C. Diphtheriae U.S. Public Health Service, 1950. (Lab- oratory Diagnosis of Diphtheriae Series No. 4) Principles and procedures: how to prepare blood serum, agar base, and In Vitro plate; inoculate plate; and read positive reactions. (CDC-5-176; 53 frames, color, synchronized disc, 9 min- utes) 27 Income U.S. Bureau of the Census, 1949. Why the Bureau collects income information; definitions of three kinds of income col-