This is the fourth volume of a comprehensive reference work on the properties of one-component, binary and ternary oxide glass-forming melts and glasses. Part A Silica Glass and Binary Silicate Glasses'' was published in 1983, and Part B Single-Component and Binary Non-Silicate Oxide Glasses'' in 1985. Part C, published in 1987, covered Ternary Silicate Glasses. The present volume covers ternary non-silicate glasses. All ternary systems are united into large groups according to the valency of the elements forming the corresponding oxides. Within each of these groups the data are classified by properties. The sequence is as follows: glass formation, crystallization, density, thermal expansion and other thermal properties, optical properties, viscosity, elastic properties and internal friction, strength, surface tension, chemical durability, electrical properties, diffusion, permeation and solubility of gases, ion diffusion, volatilization and magnetic properties. Extensive references are included, as are author, subject and formula indexes.This book is an essential aid for all those working in research laboratories of glass-making firms, university lecturers, and undergraduate/post-graduate students involved with materials science. Previous parts have already proved their usefulness to a great many people and have been described as follows: The Handbook of Glass Data cannot be recommended too strongly. It must be held in every library where there is a serious interest in glass, and it should be on the shelf of every glass researcher. (Glass Technology).