A selection of the contents. Hydrogenation (9 papers). Characterization of the surface of MoS2 based catalysts using thermal methods (G.B. McGarvey, S. Kasztelan). A comparison of the resistance to deactivation of NiMo hydroprocessing catalysts supported on alumina, carbon and carbon-covered alumina in gas oil and model compound reactions (P.M. Boorman, K. Chong, R.A. Kydd). Surface organometallic chemistry on metals. Catalytic hydrogenation of nitrobenzene into aniline on silica supported rhodium modified by tetrabutyltin (B. Didillon, F. Le Peltier, J.P. Candy, J.P. Boitiaux, J.M. Basset). Hydrogenation of coker naphtha with NiMo catalyst (S. Yui, E. Chan). Carbon-carbon bond formation (8 papers). On the behavior of Cr/silica catalyst during ethylene polymerization in a slurry reactor (J.A. Szymura, P.A. Zielinski, I.G. Dalla Lana). Anion-treated solid acids for butene dimerization (S. Soled, N. Dispenziere, R. Saleh). Solid superacid catalysts for methane conversion and alkylation (F.T.T. Ng, C.R. Rourke, J. Lynn). Promoting effects of manganese, molybdenum and iron in the hydrogenation of CO over highly dispersed rhodium (S. Marengo, S. Martinengo, L. Zanderighi). Homogeneous reactions (6 papers). Some applications of homogeneous catalysis in materials science (J.F. Harrod). Ethylene dimerization (A. Krzywicki, K. Johnstone). Hydrogenation of nitrile-butadiene rubber catalysed by Ru(II) complexes (P. Martin, N.T. McManus, G.L. Rempel). Environmental issues (11 papers). The role of catalysis in achieving a sustainable society (E.L. Tollefson). Catalytic elimination of organics over noble metal catalysts deposited on metal structures of low mass (S. Suppiah, C. Waddling, K.J. Kutchcoskie). Catalytic wet air oxidation in the presence of hydrogen peroxide (A.R. Sanger, T.T.K. Lee, K.T. Chuang). Oxidative regeneration of hydrotreating catalysts using a laser reactor (W.W.