XXIVth International Congress of Pure and Applied Chemistry, Volume 3 contains lectures presented at the XXIVth International Congress of Pure and Applied Chemistry held at Hamburg, Federal Republic of Germany in September 1973. The book consists of papers discussing a wide range of subjects on pure and applied chemistry. The compendium has papers that deal with advances in solid-state chemistry, atomic and ionic transport in ionic crystals, and the thermodynamics and preparation of non-stoichiometric, nonmetallic compounds. The text also presents papers covering topics on the formation synthesis and some properties of phosphate compounds, the application of valence electron concentration in crystal chemistry, and Crystal chemistry and magnetic properties of 3d transition metal fluorides. Chemists will find the book very interesting.