This reference for practicing coal preparation engineers and coal researchers covers the entire range of coal desulfurization processes. Although the main emphasis is on physical coal preparation, there are also chapters on chemical and microbial technologies under development, and details on unsuccessful processes and techniques and why they were abandoned. Coverage includes analytical methods, heavy media separation, gravity concentration, froth flotation, selective flocculation, and magnetic and electrical separation. Kawatra is professor and chair of the Mining and Materials Processing Engineering Department at Michigan Technological University; Eisele is an engineer and scientist affiliated with the same institution. The book is distributed by Taylor & Francis. Annotation c. Book News, Inc., Portland, OR (booknews.com)