1. On the mechanism of liquid metal electron and ion sources

   • R. Gomer

   Invited Paper Pages: 365 - 375

2. High-frequency breakdown and paschen law

   • J. C. Biswas
   • Ved Mitra

   Contributed Papers Pages: 377 - 381

3. Cavity resonances and mutual coupling in concave waveguide arrays

   • H. Steyskal

   Contributed Papers Pages: 383 - 386

4. Theoretical analysis of thermal desorption

   • S. B. Whitehouse
   • P. Jewsbury

   Contributed Papers Pages: 387 - 398

5. Efficient single-mode operation of a standing-wave dye laser

   • M. Pinard
   • M. Leduc
   • F. Laloë

   Contributed Papers Pages: 399 - 403

6. The Reflection of electromagnetic waves from almost periodic structures

   • D. L. Jaggard
   • A. R. Mickelson

   Contributed Papers Pages: 405 - 412

7. Desorption rates and mechanisms for dissociatively chemisorbed molecules

   • Ch. Steinbrüchel

   Contributed Papers Pages: 413 - 420

8. Sputtering yields for light ions as a function of angle of incidence

   • H. L. Bay
   • J. Bohdansky

   Contributed Papers Pages: 421 - 426

9. Spectral coincidences between CO-Laser and nitric-oxide. A reinvestigation

   • U. List
   • W. Herrmann
   • E. H. Fink

   Contributed Papers Pages: 427 - 429

10. Total cross-sections for the scattering of positrons by helium, neon, and argon at intermediate energies

    • T. C. Griffith
    • G. R. Heyland
    • T. R. Twomey

    Contributed Papers Pages: 431 - 437

11. Extended spectral distribution of lasing transitions in a liquid-nitrogen cooled CO-laser

    • J. Puerta
    • W. Herrmann
    • W. Urban

    Contributed Papers Pages: 439 - 440

12. Forthcoming papers abstracts

    Abstract Pages: A7 - A9