This volume may be used as a reference in courses dealing with biological aspects of pollution control. An abbreviated version of the authors'textbook entitled Microbiology for Environmental Scientists and Engineers (McGraw Hill, 1980), the book covers The Life-Support System; Technological Control of Water Quality; Chemical Composition of Cells and the Nature of Organic Matter; The Microorganism; Nutrition and Growth Conditions as Selective Agents inNatural Populations; Quantitative Description of Growth; Energy Generation and Utilization in Biological Systems; Metabolic Classification of Microorganisms; The Central Pathways of Metabolism; Aerobic Metabolism; and Anaerobic Metabolism. Chapters 1 through 10 conclude with references and suggested readings; aglossary and list of symbols are also provided.