The past 25 years in chemical kinetics have seen major advances in studyiqg the mechanisms of complex chemical re actions, in particular free radical reactions. Many differ ent methods have been developed for quantitative studies of elementary chemical reactions. Thousands of rate constants have been measured, for hundreds of diverse chemical reac tions. It is becoming more and more difficult for the chemist to orient himself in the voluminous and rapidly growing liter ature of chemical reaction kinetics. This leads to major expenditures of time in searching out, collecting. and eval uating...