A single reference for chemical technologists. The fourth edition includes expanded analytical chemistry information and the inclusion of CAS Registry Numbers. This is the 27-volume set.

This new edition of the definitive reference work in chemical technology includes CAS registry numbers, 5000 photos, charts, graphs, figures, and up-to-date information on all aspects of chemical technology including regulations, patents, and licensing. Volume 25 covers Vitamins to Zone Refining.

Alphabetical arrangement of entries that reflect current topics of interest to scientists, chemists, and engineers, e.g., health, safety, toxicology, and new materials. Comprehensive coverage. Each entry consists of lengthy signed article, with illustrations and bibliography.

Alphabetical arrangement of entries that reflect current topics of interest to scientists, chemists, and engineers, e.g., health, safety, toxicology, and new materials. Comprehensive coverage. Each entry consists of lengthy signed article, with illustrations and bibliography.

Maps, charts and related items present special problems to libraries, for example a less organised bibliographic control mechanism, more difficult means of acquisitions, and problems of storage and preservation. This book, first published in 1985, deals with these problems and presents practical solutions for maps in library collections.