Adsorption/chromatography: adsorption isotherms of albumin on a cross-linked cellulose chromatographicion-exchanger, G. Leaver, J.R. Condor, J.A. Howe; scale-up of vapour phase adsorption columns for breaking the ethanol-water azeotrope, B.D. Crittenden, B. Sowerby; membranes: reversed micellar-membrane-extraction of enzymes, M. Dekker, P. Koenen and K. Van't Riet; enhanced mass transfer for membrane processes, K. Coleman and W. Mitchell; other seperation processes: a review of current advanced design procedures for liquid-liquid extraction columns and of present problems, M.J. Slater; affinity fluid-ploymer membranes for seperations from aqueous media, S. Abed-Ali, B. Brisdon and R. England.