This collection of 61 papers is based on the study program held in Boulder, Colorado, in the summer of 1958. These papers cover a wide range of subjects, including molecular biology and the physical basis of life processes; molecular configuration of synthetic and biological polymers; physicochemical characterization of macromolecules; proteins and their interactions; mechanisms of enzyme action; coding and information theory; radiation inactivation of enzymes, nucleic acids, and bacteriophages; membrane transport; nature of the nerve impulse; sensory performance of organisms; and hormone regulation.
They are summaries of present knowledge as well as carefully documented excursions into the more basic physical and chemical foundations of important biological phenomena. Several are of particular and current interest to the physician. In his paper, "Hormone Regulation," Stetten has summarized our present knowledge of the chemical structure of insulin, glucagon, and the hormones of the posterior pituitary gland. He has explained the effects of these