Part 1 Immunobiology of pregnancy: animal models of normal and aborting pregnancy, D.A.Clark; immunogenetics of normal and abnormal pregnancy, C.Ober; extraembryonic membranes, P.W.Faulk and J.Hunt; the role of antibody, J.Macintyre; the endothelial surface, Triplett Douglas. Part 2 Immunopathology of pregnancy: macrophages in normal and diabetic placentae, D.Zaccheo and M.Castellucci; lymphokines and cytokines affecting reproductive outcome, A.Clark; placental immunopathology, P.W.Faulk and C.Laberrere; immunotherapy of recurrent spontaneous abortion, J.MacIntyre; immunobiology of trophoblast antigens in normal and recurrent spontaneous abortions. Part 3 Immunology of diabetic pregnancy: epidemiologic studies in children of diabetic pregnancies - genetic interferences, J.Warram; outcome of diabetic pregnancy, J.Baird; immunological markers of diabetes, G.F.Botazzo; the genetics of insulin-dependent diabetes mellitus and its possible advantage for fertility, G.A.Hitman and M.J.Niven; allogenic recognition in pregnancy in diabetic animals, P.Rubenstein; immunogenetics of gestational diabetes, R.Acton; allogenic recognition in diabetic pregnancy, Van Assche; the effects of anti-insulin and anti-receptor antibodies on animal embryos, J.Roth; infiltrates in neonatal pancreas from diabetic mothers, S.Grasso; humoral immunity in diabetic pregnancy and in infants of diabetic mothers, U.Di Mario; cell-mediated immunity in diabetic pregnancy and in infants of diabetic mothers, A.G.Galluzzo; immunological modifications in diabetic pregnancy and in infants of diabetic mothers, J.Hoet; autoimmune diseases in pregnancy, P.Vardi and C.Giordano.