Water Science Reviews contains three or four critical reviews of the type previously published in the seven volume work Water - A Comprehensive Treatise.Interest in water will continue to grow for a long time to come. It will continue to spread over a large number of disciplines and technologies. Water Science Reviews contains three or four critical reviews of the type previously published in the seven volume work Water - A Comprehensive Treatise.Interest in water will continue to grow for a long time to come. It will continue to spread over a large number of disciplines and technologies. Water Science Reviews contains three or four critical reviews of the type previously published in the seven volume work Water - A Comprehensive Treatise.The third volume of Water Science Reviews addresses the dynamics and transport of water at the molecular and macroscopic level. The study of the hydrated proton, by C.I. Ratcliffe and D.E. Irish, is a masterly survey of a complex subject, in which the authors concentrate on the vast literature dealing with the theory of solution chemistry. H. Levine and L. Slade develop the concept of water as a platicizer of natural and synthetic polymers. A. Deri Tomos considers the cellular water relations, including water fluxes at the level of the single cell. Finally, W. Pusch examines differential flows of water and selected solutes across synthetic membranes.1. The nature of the hydrated proton C. I. Ratcliffe and D. E. Irish; 2. Water as a plasticizer: physico-chemical aspects of low-moisture polymeric systems H. Levine and L. Slade; 3. Cellular water relations of plants A. Deri Tomos; 4. Transport of water across synthetic membranes W. Pusch; References.