Designed for adult education and the young reader, this pictorial reference guide to chemistry, physics, and astronomy is a result of the combined efforts of editors, contributors, and consultants. Presenting the historical development of science and the latest information on recent scientific advancements, the text is prepared by prominent current scientists and is totally original. With numerous full-color paintings for illustration, it is composed of many self-contained units of two-page spreads, treating specific scientific topics. Complete with basic illustrative diagrams, charts, and date tables, the book is constructed along a distinct and unified system in which each unit relates to and derives significance from the preceding and subsequent ones. This library is singular in that it is systematic as opposed to alphabetic, and more pictorial than is customary in most reference books. It is indeed an educational book for all ages but it is outstanding in that it avoids the current tendency of over-simplification, as well as presenting its information in such a way as to stimulate the reader's curiosity and intelligence not only to further study, but also to the effort of relating scientific facts to the larger and more universal whole of his own experience.