The references cited indicate articles that cover synthesis, spectra etc. It has indexes by name, molecular formula, registry number. Supplements 1-10 update the main volumes. Gmelin Handbuch der anorganischen Chemie. Gmelin is the major comprehensive handbook for inorganic compounds and organometallic compounds.
Earlier volumes are in German, later volumes in English.
The library discontinued its subscription to the series in 1994. Each element has a set of volumes identified by a Gmelin system number and containing information on the element and its compounds. See Guide to Gmelin . Dictionary of inorganic compounds. Chapman and Hall, 1992. 5 vols.