The present volume represents the proceedings of the symposium on npyridine Nucleotide-Dependent Dehydrogenases" which was held on the campus of the re cently established University of Konstanz, Germany, from September 15 to 20, 1969. The aim of the symposium was to provide a forum for discussion among the experts interested in the various aspects of pyridine nucleotide-dependent de hydrogenases and the pyridine coenzymes, so as to evaluate the state of the present knowledge and to stimulate further progress in this field. In order to facilitate discussion and personal contact it was...