Experimental physical chemistry: molecular and atomic spectroscopy, field ionization and photoabsorption of molecular Rydberg states in dense gases and simple fluids, molecular Rydberg-Rydberg transitions, electric field effects on molecular Rydberg states, the effects of rare-gas clusters on molecular Rydberg states, oscillatory absorption and fluorescence in gas-phase and liquid-phase chemical systems, Turing pattern formation in liquid-phase chemical reactions