NUMBER ONE BUSH. Crown Zellerbach Corp. 22 min., color, © Crown Zellerbach Corp.; 25May70; MU8185.
NUMBERS, CARDINAL AND ORDINAL. See
AUDIO-VISUAL ENGLISH.
NUMBERS 11-19. Review Educational Films. 11 min., sd., color, Super 8 mm. Loop film. (Films on mathematics for the elementary school, first level series) © Review Educational Films, Inc.; 1Sep69; MP20421.
NUTRITION (Filmstrip) Edwin Shapiro. 33 fr., color, 35 mm. © Edwin Shapiro; 17Oct69; A128870.
O
OBJECT CODING. International Business Machines Corp. 45 min., sd., b&w. Videotape (1 in.) (7080 programming) © International Business Machines Corp.; 16Jun69 (in notice: 1968); MP20199.
OBSERVING AND INFERRING: THE BALLOON BOX. American Assn. for the Advancement of Science. Made by Inter/Media Instructional Systems. 3 min., sd., color, Super 8 mm. © American Assn. for the Advancement of Science; 1Jul69; MP20159.
THE OBSOLETE MENOPAUSE. Upjohn Co. 18 min., sd., color, 16 mm. (The Upjohn Vanguard of medicine) © Upjohn Co.; 21Oct66; LP37497.
AN OBVIOUS CASE OF GUILT. See