Catalysis in general, On Catalysis, Mechanism of Catalysis, Isomerization-Polymerization-Depolymerization-condensations by addition, Oxidations, Various substitution in Molecules, Hydration, Hydrogenation, Various Eliminations, Dehydrogenation, Dehydration, Decomposition of Acids, Decomposition of the esters of Organic Acids, Decomposition and condensation of Hydrocarbons,