The three appendices review the developments, methods, costs, and controls related to evaporation, phreatophytes, and desalination. Each of these areas is explored separately with their own bibliographies included. Evaporation is discussed in terms of the importance of evaporation losses, types of control, area reduction, mechanical covers, surface films, the history of films, and U. S. evaporation control studies. Past and present interest in phreatophytes and their use of water is discussed in some detail. It is concluded that the future of saline water conversion in providing high quality will be limited to the area of water treatment, and is not likely to be used as a salinity control procedure for maintaining in-stream water quality.