Papers and Reviews may be concerned with either quantitative or qualitative aspects of photochemistry. Organic, inorganic and coordination systems are all treated. The scope includes the physical chemistry of excited atoms or molecules, studies of electronic energy transfer, quantum yield determinations and kinetic measurements made under stationary or non-stationary conditions, measurements of rate constants for primary or secondary photochemical processes, studies of absorption or emission spectroscopy applied to photochemistry, mechanistic investigations of photochemical reactions based on product analysis or energy transfer studies, identification of the products of photochemical reactions, and studies related to the photochemical conversion and storage of solar energy and to atmospheric photochemistry. Papers relating to Applied Photochemistry are also published. This field includes studies of photoinitiation of polymerization, photo-cross-linking, photodegradation or photostabilization of polymers, photohalogenation, chemical aspects of photography and the design of photoreactors.