Absorptions and Emissions for the TmCl ₆ ^3- Ion in Cs ₂ NaTmCl ₆
R. Acevedo, O.F. Hurtado, C. Portillo and W. Stręk , page 829,  abstract  Full Text PDF

Analysis of the Origin Band of Acridine Dimer Fluorescence Excitation Spectrum --- Conformations of Jet-Cooled Acridine Dimer
I. Deperasińska and J. Prochorow , page 845,  abstract  Full Text PDF

Direct Ellipsometry Problem for the Substrate-Based Uniaxial Non-Homogeneous Film
M.M. Karpuk and S.M. Karpuk , page 859,  abstract  Full Text PDF

Effective Velocity of Soliton in the Presence of a Periodic Background
J. Pełka and J. Zagrodziński , page 871,  abstract  Full Text PDF

Studies of Elastic Waves Propagation in Triglycine Sulphate Crystals Doped with Chromium Ions
J. Dziedzic , page 879,  abstract  Full Text PDF

Superconductivity of the Two-Dimensional Penson--Kolb Model
W.R. Czart and S. Robaszkiewicz , page 885,  abstract  Full Text PDF

Dielectric Investigation of Glycine Phosphite Crystal
R. Czukwinski, Z. Czapla and R. Styrkowiec , page 897,  abstract  Full Text PDF

On Magnetization Reversal in Hard Magnetic Sm--Fe--N Permanent Magnets
P. Pawlik, J.J. Wysłocki and M. Baran , page 905,  abstract  Full Text PDF

Observation of "Diffusion Modes" in Measurement of the Diffusion Coefficient of Cesium in Noble Gases
P. Rudecki , page 915,  abstract  Full Text PDF

LETTER TO THE EDITOR: Critical Comments Concerning Articles on Some Lyotropic Systems Published in Acta Physica Polonica A
K. Kantarli , page 925