As in Volumes 35 and 36, the chapters in this new volume complement, with personal recollections, the History of Biochemistry that was covered in the Comprehensive Biochemistry Series, Volumes 30-33 by M. Florkin and Volume 34A by P. Laszlo. The biographical and autobiographical chapters will convey to the reader a lively, albeit at times subjective, view of the scientific and social environment in which the authors have worked, resulting in new concepts and theories on the biological sciences.