25 TRUE STEREOSCOPIC MOVIE SYSTEM WITHOUT GLASSES - Part 1
A design is presented for a new approach to stereo pictures which are projected to a large audience.
By Robert B. Collender

39 LEGIBILITY REQUIREMENTS FOR EDUCATIONAL TELEVISION
Results of a study determining how classroom seating affects students' view of a televised lesson are translated into recommendations for classroom viewing.
By Alan 5. Neal

14 EDITORIAL: New president Carl Machover greets the membership

45 INFO '68 : Coverage of the recently-completed symposium, including addresses
By Harry I. Davis and Peter C. Goldmark

52 PRESIDENT'S REPORT
By William Bethke

54 MASS SENSOR DETECTS MINUTE GRAVITY CHANGES

56 ON THE MOVE: People- their appointments, promotions

58 READOUT: Display industry news

60 SID ACTIVITIES: Local and national news

62 NATIONAL TECHNICAL CONFERENCE: Coming in November

63 10th NATIONAL SYMPOSIUM: MEDIA call for papers

64 NEW PRODUCTS: Innovations from many firms

66 NEW LITERATURE : Data available on items and ideas

68 SUSTAINING MEMBERS

68 ADVERTISERS' INDEX: for finding them quickly