Preface. Can We Put the Cluster-Surface Analogy on a Sound Structural Basis? A.M. Bradshaw. An Atomic View of Diffusion on Metal Surfaces; G. L. Kellog. Dynamics of the Desorption of Carbon Monoxide from Size-Selected Supported Platinum Clusters; U. Heiz, R. Sherwood, D. M. Cox, A. Kaldor, J. T. Yates Jr. NMR Investigation of Binding of Aromatics at Catalytic Surfaces; C. Dybowski, M. A. Hepp. From Molecular Carbonyl Clusters to Supported Metal Particles; R. Giordano, E. Sappa, G. Predieri. Cluster Equilibria. Relevance to the Energetics and Reactivity of Surface Bound Fragments; T. P. Fehlner. Reactions and Dynamics of Ruthenium Clusters; K. Vrieze, C. J. Elsevier. Unusual Ligand Transformations and Rearrangements in Heterometallic Clusters; Y. Chi, S.-J. Chang, C.-J. Su. Hydride Mobility and its Relation to Structure and Reactivity in Polymetallic Clusters; E. Rosenberg. Structural Variations in Tetranuclear Platinum-Ruthenium Clusters; L. J. Farrugia, D. Ellis, A. M. Senior. Intramolecular Exchange in d 9 Metal Carbonyl Clusters; R. Roulet. Static and Dynamic Stereochemistry of the Organometallic Cluster Complexes [CpCo)3(mu3-Arene)]; H. Wadepohl. NMR Studies on the Dynamic Behaviour in Solution of Rhenium-Platinum Mixed Metal Clusters Containing P-Donor Ligands; T. Beringhelli, G. D. Alfonso, A. P. Minoja, R. Mynott. Organometallic Migrations over Clusters and Surfaces; M. J. McGlinchey, L. Girard, A. Decken. Structure, Melting and Reactivity of Nickel Clusters from Numerical Simulations; J. Jellinek, Z. B. Güvenç. Heterodox Bonding Effects between Transition Metal Atoms; S. Alvarez, P. Alemany, G. Aullon, A. A. Palacios, J. J. Novoa. Periodic Hartree-Fock Calculations of the Adsorption of Small Molecules on TiO2; C. Minot, A. Fahmi, J. Ahdjoudj. An Overview of the MO Architectures of Metal Clusters Using Graphic Tools; C. Mealli. Molecular Orbital Approach of Skeletal Isomerism and Polyhedral Rearrangements in some Organometallic Clusters; J.-Y. Saillard, M. T. Garland, S. Kahlal, J.-F. Halet. Some Old and New Redox Reactions of Polynuclear Organometallic Complexes; H. Vahrenkamp. Arene Cluster Compounds; B. F. G. Johnson. Silver and Gold Clusters Stabilized by Fe(CO)4 Ligands; F. Calderoni, M. C. Iapalucci, G. Longoni, U. Testoni. Reactions of Silylalkanes with Triosmium and Triruthenium Clusters; A. A. Koridze. Index.