16 BOOKS, NEWSPAPERS AND MAGAZINES FOR STUDENTS AND TEACHERS; PROGRAMMED INSTRUCTIONS CONSISTING OF PRINTED SHEETS AND BOOKLETS; BOOKLETS TO BE USED AS TRAINING COURSES; FACSIMILE EDITIONS OF BOOKS; FACSIMILE COPIES MADE FROM MICROFILM OF BOOKS AND OTHER PRINTED MATERIALS; VISUAL AIDS FOR CLASSROOM TEACHING, CONSISTING OF WALL CHARTS AND PICTURES