CONTENTS :- INTERNATIONAL ACTIVITIES COMMITTEE - REGISTRATION COMMITTEE - AWARD - PROGRAM OF NEW PRODUCTS SEMINAR - PROGRAM OF REFRESHER SEMINARS - PROGRAM OF INDUSTRIAL SEMINARS - PROGRAM OF TECHNICAL SESSIONS - INDEX OF AUTHORS - INDEX OF TECHNICAL PAPERS - I ANTENNAS AND MICROWAVES - INTERFERENCE FRINGES IN LASER SYSTEMS - EXPERIMENTAL SIGNAL AND ERROR DATA FROM TROPOSCATTER DIGITAL COMMUNICATION LINK - A NEW REFLECTION COEFFICIENT FOR LOW DENSITY DIELECTRICS - EXPERIMENTAL DETERMINATION OF THE COUPLING BETWEEN ANTENNAS - NON-UNIFORM TRANSMISSION LINES WITH APPLICATIONS TO LOG- PERIODIC ANTENNAS - IMPEDANCE EFFECTS ON MONOPULSE ANTENNAS - LINEAR ANTENNA ARRAY SYNTHESIS from a SPECIFIED FAR-FIELD POWER PATTERN - SIDELOBE REDUCTION AND GAIN CHARACTERISTICS OF PARTIALLY" UNIFORM ARRAYS - MICROWAVE MULTIPLE FREQUENCY OPERATION OF TUNNEL DIODE - GAIN STABILITY CONTROL OF FOUR-FREQUENCY PARAMETRIC DEVICES - AN APPROXIMATE METHOD FOR THE STEP-RESPONSE OF A TRANSMISSION LINE LOADED WITH DISCONTINUITIES - MILLIMETER WAVE PULL-IN OSCILLATION - II ELECTRONICS - INTERACTION OF HIGH POWER USER RADIATION WITH ABSORBING SURFACES - AN OPTICAL STUDY OF PERFORMANCE LIMITATIONS OF PLASMA LASERS - PLASMA DIODES - THE INFLUENCE OF THE CATHODE FALL REGION UPON ELECTRON EMISSION IN SCREEN MESH COLD CATHODE DISCHARGES - COUPLING AND FAST WAVES IN ELECTRON BEAM-PLASMA SYSTEMS - III MEDICAL ELECTRONICS, etc.