The establishment and maintenance of hepatocyte surface polarity - J R Bartles; Cell adhesion and intercellular junctions in cultured epithelial cells - D R Garrod and J Collins; Instructive cell-cell adhesion and membrane cytoskeleton assembly in development of epithelial cell surface polarity - H McNeil and W James Nelson; The formulation and fate of the blastoderm epithelium in the Drosophila embryo - R Warn and M Robert-Nicoud; The role of the yolk sac and gut epithelial cells in maternal immunoglobulin transport - A E Wild; Protein and lipid targeting and the generation of epithelial cell polarity - E Rodriguez-Boulan and S K Powell; Trophectoderm biogenesis in the preimplantation mouse embryo - T Fleming. Development of kidney epithelial cells - L Sorokin, G Klein, G Mugrauer, M Ekblom, L Fecker and P Ekblom; The epithelial cell and its microenvironment: an integrated unit of function. Evidence from the mammary gland - R S Talhouk, Z Werb and M Bissel; Epithelial cell interactions with the basement membrane in regulation of early events in skin morphogenesis - W G Carter, T A Brown, M C Ryan an B E Symington; The development of a simple epithelium: the insect malpighian tubule - H le B Skaer; Salivary gland epithelial branching morphogenesis - B S Spooner and P Hardman; Cytoskeletal components in intestinal brush border morphogenesis: an evaluation of their function - M Arpin and E Friedereich.