The Nature of the Electronic Excited States of Molecular Systems; B. Di Bartolo. Properties of the Excited States of Complex Molecules; J. Reuss. Rate of Processes Involving Excited States; A.M. Stoneham. Excited States in Semiconductors; C. Klingshirn. Advances in the Characterization of Excited States of Luminescent Ions; G.F. Imbusch. Relaxed Excited States of Color Centers; G. Baldacchini. Properties of Highly Populated Excited States in Solids; F. Auzel. Advances in the Sensitization of Phosphors; B. Smets. Laser Spectroscopy inside Inhomogeneously Broadened Lines; M. MacFarlane. Excited-State Dynamics and Energy Transfer in Doped-Substituted Garnets; A. Brenier, et al. Studies of the Charge Transfer States of Certain Rare-Earth Activators in Yitrium and Lanthanum Oxysulfides; C.W. Struck, W.H. Fonger. The Jahn-Teller Effect in the Optical Spectra of Impurities; G. Viliani. 42 additional articles. Index.