Part headings and selected papers: -- Theory, Modelling and Simulation. Adsorption of argon and xenon in silica controlled porous glass: a grand canonical Monte-Carlo study (R.J.-M. Pellenq <IT>et al.</IT>). The role of isosteric enthalpy of adsorption in micropore characterisation: a simulation study (D. Nicholson, N. Quirke). -- Highly Ordered Porous Inorganic Systems. Rational design, tailored synthesis and characterisation of ordered mesoporous silicas in the micron and submicron size range (M. Grün <IT>et al.</IT>). Relationship between intrinsic pore-wall corrugation and adsorption hysteresis of N<INF>2</INF>, O<INF>2</INF> and Ar on regular mesopores (S. Inoue <IT>et al.</IT>). -- Carbons. Use of immersion calorimetry to evaluate the separation ability of carbon molecular sieves (C.G. de Salazar <IT>et al.</IT>). Molecular simulations and measurement of adsorption in porous carbon nanotubes (E. Alain <IT>et al.</IT>). -- Interpretation of Data, Membranes. Critical appraisal of the use of nitrogen adsorption for the characterisation of porous carbons (P.L. Llewellyn <IT>et al.</IT>). Structural characterisation and applications of ceramic membranes for gas separations (E.S. Kikkinides <IT>et al.</IT>). -- Miscellaneous Techniques. Further evidence of the usefulness of CO<INF>2</INF> adsorption to characterise microporous solids (J. Garcia-Martinez <IT>et al.</IT>). Interaction between menisci in adjacent pores (G. Mason <IT>et al.</IT>). Studies on the formation and properties of some highly ordered mesoporous solids (M.J. Hudson, P. Trens). Pore structure of zeolites of type Y and pentasil as the function conditions of preparation and methods of modification (A.V. Abramova <IT>et al.</IT>). Characterisation of activated carbon fibers by positron annihilation life-time spectroscopy (PALS) (D. Lozano-Castelló). -- Author index.