The Symposium on Membrane Processes in Industry and Biomedicine has been held under the sponsorship of the Division of Industrial and Engineering Chemistry at the 160th National Meeting of the American Chemical Society, Chicago, Illinois, September 16 and 17, 1970. Its pri mary objective has been to spotlight some of the current directions of research in this rapidly growing field. There is at present considerable enthusiasm in membrane research, and the expectations are running high. This is partially due to the fact that basic concepts on which membrane processes are based are so...