Section 1: Structure.- 1 The brain stem reticular formation.- Section 2: Genetics.- 2 Clinical and biochemical manifestations of acute intermittent porphyria: a working model for schizophrenia as an inborn error of metabolism.- Section 3: Pathogenesis.- 3 Psychoses from digestive origins.- 4 The amino hepato-entero-toxic theory of schizophrenia: an historical evaluation.- 5 Clues to the causation of schizophrenia.- 6 An evaluation of the dopamine hypothesis of schizophrenia.- 7 The dopamine hypothesis revisited.- 8 Tryptophan and serotonin in schizophrenia: a clue to biochemical defects?.- 9 Neurochemical findings in the post-mortem schizophrenic brain.- 10 The pineal gland: its possible significance in schizophrenia.- Section 4: Treatment.- 11 Rational drug treatment in schizophrenia.- 12 Investigations into serum folate and B12 concentrations in psychiatric in-patients with particular reference to schizophrenia.- 13 Propranolol and schizophrenia: objective evidence of efficacy.- Section 5: Dietary Factors.- 14 The effect of diet on brain neurotransmitters.- 15 Schizophrenia: Are some food-derived polypeptides pathogenic? Coeliac disease as a model.- 16 Some insights into the pathogenesis of schizophrenia.- 17 Nutrition and schizophrenia: implications and problems.- 18 The cytotoxic properties of wheat proteins.- 19 5-Hydroxytryptamine metabolism in coeliac disease.- 20 A preliminary investigation of dietary constituents and amphetamine-induced abnormal behaviour.- Section 6: Immunological Factors.- 21 Immunobiological approaches to the study of gut function.- 22 Nutrition and immunity: possible new approaches to research in schizophrenia.- 23 The absorption of large breakdown products of dietary proteins into the body tissues including brain.- 24 Antibodies to gliadin in serum of normals, coeliac patients and schizophrenics.- Section 7: Alcoholism.- 25 Screening tests for alcoholism.