1. Forthcoming papers

   Announcement Pages: A5 - A6

2. Experimental and theoretical evaluation of the efficiency of an off-axis volume holographic lens

   • R. R. A. Syms
   • L. Solymar

   Contributed Papers Pages: 165 - 173

3. Investigation of stimulated Brillouin scattering under well-defined interaction conditions

   • B. Gellert
   • B. Kronast

   Contributed Papers Pages: 175 - 186

4. Differential amplitude contrast imaging in the scanning optical microscope

   • T. Wilson
   • D. K. Hamilton

   Contributed Papers Pages: 187 - 191

5. The vibrational relaxation time constant for theB _v=0 level of XeCl

   • O. L. Bourne
   • A. J. Alcock

   Contributed Papers Pages: 193 - 198

6. Numerical solution for an inverse scattering problem of non-periodic rough surfaces

   • O. Mata Mendez
   • A. Roger
   • D. Maystre

   Contributed Papers Pages: 199 - 206

7. Oxidation-state-specific detection of uranium in aqueous solution by photoacoustic spectroscopy

   • W. Schrepp
   • R. Stumpe
   • H. Walther

   Contributed Papers Pages: 207 - 209

8. Investigation of hollow cathode Ge II and Te II lasers

   • Liu Jian-bang

   Contributed Papers Pages: 211 - 215

9. Effects of “atomic depletion” on four-wave mixing in potassium

   • S. C. Mehendale
   • P. K. Gupta
   • K. C. Rustagi

   Contributed Papers Pages: 217 - 223