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- a 9 b7o O peration and. Care of the DeVrylite Sound Projector .,, 16mm, sound, black and white. To min. International Film Bureau, 57 East Jackson Boulevard, Chicago, Ill., 1953* 1*8. Operation and Care of RCA IjOO 16mm Sound Projector . 16mm, sound, color or black and white, 18 m in . International" Film Bureau, 57 East Jackson Boulevard, Chicago, HI., 195U. U9* Operation and Care of the Victor 16mm Sound Projector . 16mm, sound, color or black and white, 11 min. international Film Bureau, 5? feast" Jackson Boulevard, Chicago, HI., 19SU. 50• Overhead Projector . 16mm, sound, black and white, 16 min. State University of Iowa, Sureau of Visual Instruction, Extension Division, Iowa City, Iowa, 1953* 51. Projecting Motion Pictures . l6mm, sound, black and white, 10 min. University of California, University Extension, Educational Film Sales Department, Los Angeles 2t, Calif., 195lo 52. Slide sets produced by colleges, illustrating audio-visual programs in action, may be borrowed from the Department of Audio-Visual Instruction, National Education Association, 1201 16th Street, N. , Washington, D. C. 53. The Teaching Materials Center . 16mm, sound, color or black and white, 9 min. Virginia State department of Education, Richmond l6, Va., 1950. 5Iu Test Films . 16mm, Society of Motion Picture and Television Engineers, 55 West l*2nd Street, New York. Picture and Sound "Sound Projector Test Film." "Sound-Service Test Film.” Picture Only "Television Test Films Alignment-and-Be solution Section." Glass Slide "Projector Lens Resolution Target." Sound Only "Buzz-Track Test Film." "Sound-Focusing Test Film." "UOO-Cycle Signal Lever Test Film." "3000-Cycle Flutter Test Film." "Multifrequency Test Film. ^ "Scanning-Beam Illumination Test Film." "1.6mm Magnetic Azimuth Alignment Test Film." 55. Training Aids. One of three films under "Slides, Large Drawings, and Transparencies." 16mm, sound, color, 18 min. Government Films Department, United World Films, Inc., lUi5 Park Avenue, New York, 1950-51* Part II - Classrooms Books, Articles, Pamphlets 56. Acoustical Materials Association. Theory and Use of Architectural Acoustical Materials . New Yorkg the Association, 1950. 20 p. 57. Bursch, Charles W., and Noel, Francis W« "Light Control in California Classrooms." Educational Screen 3hs 72| February 1955*