The phenomenon of superconductivity has gained a newinterest since the recent discovery of materials withtransition temperatures above 77K. The research on the newsubstances has increasingly contributed to the progress ofmaterials science.In volume III/21 the reported data on superconductingmaterials, from the discovery of this phenomenon to thepresent days of intensive research on high-Tcsuperconductors, are compiled. The data comprise variousmodifications of a material, e.g. bulk state, thin films,implanted or filamentary wires. Where available, dataobtained under high presure or after high energy particleirradiation are also tabulated. A particular effort was madetopresent not only the superconducting data for a givensubstance, but also the complete characterization of theanalyzed samples. This characterizationcomprises themetallurgical and the crystallographical analysis as well asthe analysis of other physical properties.The goal of the volume is to establish a complete andreliable compilation of critically reviewed experimentaldata, excluding purely theoretical works.The large amount of publications, more than 40.000 since1913, requires a subdivision of the data in severalsubvolumes, the second of which is presented herewith. Nosuch complete collection exists elsewhere, so that thesetables should respond to a real need of both physicists andmaterial scientists.