1. Editorial statement

   • D. J. Bradley
   • J. Ernest
   • R. C. Smith

   EditorialNotes Pages: i - i

2. Design and performance of photo-cell systems for pulsed laser power and energy measurements

   • J. G. Edwards

   Papers Pages: 1 - 8

3. The electro-optic effect in proustite

   • B. Trevelyan

   Papers Pages: 9 - 12

4. Laser Q-switching by organic solvents

   • J. Katzenstein
   • G. Magyar
   • A. C. Selden

   Papers Pages: 13 - 19

5. A 10-stage digital light beam deflector

   • U. Schmidt
   • W. Thust

   Papers Pages: 21 - 23

6. Phase-matching for optical up-conversion with maximum angular aperture — theory and practice

   • J. Warner

   Papers Pages: 25 - 28

7. Synthetic proustite (Ag₃AsS₃): A summary of its properties and uses

   • W. Bardsley
   • P. H. Davles
   • J. Warner

   Papers Pages: 29 - 31

8. Fluorescence method for determining laser parameters

   • V. R. Belan
   • V. V. Grigoryants
   • M. E. Zhabotinski

   Papers Pages: 33 - 35

9. Huygens' principle in inhomogeneous, isotropic media and a general integral equation applicable to optical resonators

   • P. Baues

   Papers Pages: 37 - 44

10. Optical data addition and subtraction

    • S. J. S. Bradshaw
    • P. J. C. Child

    Papers Pages: 45 - 48

11. Image enhancement: A review

    • T. S. Huang

    Review Article Pages: 49 - 59

12. The acoustic properties of proustite

    • B. Trevelyan

    Letters Pages: 61 - 62

13. A simple laser-triggered spark gap for kilovolt pulses of accurately variable timing

    • D. J. Bradley
    • J. F. Higgins
    • S. Majumdar

    Letters Pages: 62 - 64

14. Surface radiation from non-linear optical polarisation

    • A. Zembrod
    • H. Puell
    • J. A. Giordmaine

    Letters Pages: 64 - 66

15. Conferences 1969

    Announcement Pages: 67 - 67