ADVANCES IN CATALYSIS VOLUME 33. Content: Front Cover; Advances in Catalysis, Volume 33; Copyright Page; Contents; Contributors; Paul Hugh Emmett, 1900-1985; Chapter 1. Homogeneous Nickel-Catalyzed Olefin Hydrocyanation; I. Introduction and Scope; II. Equilibria Involving Ni(0) Complexes; III. Dienes and HCN; IV. Olefin Isomerization; V. Monoolefins and HCN; References; Chapter 2. Supported Chromium Catalysts for Ethylene Polymerization; Introduction; I. Hexavalent Cr/Silica; II. Reduced Cr/Silica; III. Polymerization over Cr/Silica; IV. The Porosity of the Support; V. Modifications of Cr/Silica; VI. Chromium Oxide on Other Support VII. Organochromium CatalysisReferences; Chapter 3. Catalysis Controlled by the Constitution of Active Sites; I. Introduction; II. Isomerization Reaction; III. Hydrogen Exchange Reaction; IV. Hydrogenation Reaction; V. Conclusion; References; Chapter 4. Selective Oxidative Dehydrogenation of Butenes on Ferrite Catalysts; I. Introduction; II. Selective Oxidation and Combustion Sites; III. Densities of Oxidation Sites; IV. Role of Adsorbed Oxygen; V. Role of Lattice Oxygen; VI. Kinetics and Mechanism VII. Factors Affecting Selectivity: Roles of Crystal Structure, Nature of Transition Metal Ions, and Effect of PromotersVIII. Effect of Crystallite Size; IX. Other Structure-Sensitive Oxidation Reactions; X. Catalytic Activity of Iron Hydroxide; XI. Conclusions; References; Chapter 5. The Study of Aluminosilicate and Related Catalysts by High- Resolution Solid-state NMR Spectroscopy; I. Introduction; II. Relevant Spectroscopic Considerations; III. Solide-State NMR Studies of Zeolites; IV. Silica-Alumina Gels; V. Derivatized Surfaces and ""Immobilized"" Homogeneous Catalysts VI. Probing Supported Metal Catalysts by NMR without Utilizing High-Resolution TechniquesVII. Bond Lengths, Structure, and Mechanism in Heterogeneous Catalysis and in Chemisorbed States; VIII. Sheet Silicates and Their Pillared Variants; IX. Recent Trends in the Study of Catalytic Solids by NMR; References; Author Index; Subject Index Abstract: ADVANCES IN CATALYSIS VOLUME 33