1. Forthcoming papers

   Announcement Pages: A5 - A6

2. New cw fir laser emissions from CO₂ laser-pumped vinyl bromide

   • P. Belland
   • C. Gastaud
   • M. Fourrier

   Contributed Papers Pages: 175 - 177

3. A differential detection scheme for Faraday rotation spectroscopy with a color center laser

   • H. Adams
   • D. Reinert
   • W. Urban

   Contributed Papers Pages: 179 - 185

4. Quantitative lidar at 532 nm for vertical extinction profiles and the effect of relative humidity

   • H. W. M. Salemink
   • P. Schotanus
   • J. B. Bergwerff

   Contributed Papers Pages: 187 - 189

5. A subpicosecond dye laser pumped by a xenon ion laser

   • G. Bergamasco
   • W. Cecchetti
   • R. Polloni

   Contributed Papers Pages: 191 - 192

6. Magnetic levitation: The track currents

   • J. Van Bladel
   • D. De Zutter

   Contributed Papers Pages: 193 - 201

7. Speciation of actinide ions in aqueous solution by laser-induced pulsed photoacoustic spectroscopy

   • R. Stumpe
   • J. I. Kim
   • H. Walther

   Contributed Papers Pages: 203 - 206

8. Optical klystron experiments for the ACO storage ring Free Electron Laser

   • D. A. G. Deacon
   • M. Billardon
   • Y. Petroff

   Contributed Papers Pages: 207 - 219

9. Coherent effects in inverse compton scattering in the high frequency region

   • M. Bertolotti
   • C. Sibilia

   Contributed Papers Pages: 221 - 228

10. Study of the SF ₆ ⁻ ion lifetime in a rf quadrupole trap

    • M. Vedel
    • J. André
    • J. P. Schermann

    Contributed Papers Pages: 229 - 235