This volume encompasses the processes of coupling the dynamics of fluid flow and molecular transformations in reactive media, and those occurring in any combustion system. The colloquium, in addition to embracing the usual topics of explosions, detonations, shock phenomena, and reactive flow, included papers that deal primarily with the gasdynamic aspect of nonsteady flow in combustion systems, the fluid mechanics aspects of combustion, with particular emphasis on the effects of turbulence, and diagnostic techniques used to study combustion phenomena. Partial contents: Flame ignition and propagation; Diffusion and premixed flames; Flame instabilities and acoustic interactions; Practical combustion configurations; Models, simulations, and experiments in turbulent reacting flows; Heterogeneous combustion; and Combustion modeling and kinetics.