The proceedings of the 11th ESACT (European Society for Animal Cell Technology) meeting, Brighton, UK, 1992, comprise papers and discussions addressing the products and processes of animal cell technology, a field of major importance in biotechnology. Perhaps the most important developments discussed are the batch versus perfusion culture; ammonia detoxification; and the use of tissue with differentiated properties for in-vitro toxicity tests. Annotation copyright Book News, Inc. Portland, Or.