Structure: L. Pauling, X-Ray Crystallography and the Nature of the Chemical Bond. M.F. Perutz, The Significance of the Hydrogen Bond in Physiology. A. Rich, Molecular Recognition between Protein and Nucleic Acids. F. Crick, The Impact of Linus Pauling on Molecular Biology: A Reminiscence. L. Pauling, How I Became Interested in the Chemical Bond: A Reminiscence. Dynamics: G. Porter, Chemistry in Microtime. J.C. Polanyi, The Transition State. D.R. Herschbach, Chemical Reaction Dynamics and Electronic Structure. A. Zewail and R. Bernstein, Real-Time Laser Femtochemistry: Viewing the Transition from Reagents to Products. Biographies. Index.