Welcoming Address.- Initiation of Transcription by RNA Polymerases of E.coli and Phage T3.- In-vivo and In-vitro Initiation of Transcription.- Bacillus Cereus Outgrowth "Early Proteins" and Their Possible Role in Control of Transcription.- In-vitro Transcription of E.coli tRNA Genes Carried by Transducing Phages.- Symmetrical Transcription in Animal Cells and Viruses.- Chromatin Structure and Gene Expression in Eukaryotes.- New Developments in Protein Synthesis. A Survey.- mRNA Specific Initiation Factors in the Control of Protein Synthesis.- Some Correlations Between Ribosomal Proteins and Ribosomal Activities.- DNA Complementary to Globin and Immunoglobulin mRNA: a Probe to Study Gene Expression.- Defective Translational Control in the ?-Thalassemia of Ferrara.- Control of Gene Expression in Animal Cells: the Cascade Regulation Hypothesis Revisited.- Control of Gene Expression During Erytbroid Cell Differentiation.- Regulation of Developmental Pathways Following Infection of Escherichia coli by Bacteriophage Lambda.- Faulty Proteins: Altered Gene Products in Senescent Cells and Organisms.- Regulation of the Expression of the Reovirus Genome In-vivo and In-vitro.- SV40 DNA Molecules which Contain Host Cell DNA.- Studies on the Replicase of Encephalomyocarditis Virus.- Induction of C-Type Particles in Mammalian Cancer Cells.- RNA Directed DNA Polymerase in C-Type Particles from Normal Rat Thymus Cultures and Moloney Leukemia Virus.- The Molecular Biology of the Steroid Hormones.- Effects of Oestradiol on Different Cell Types.- Sequential Gene Expression in Response to Estradiol-l7?, During Post-Natal Development of Rat Uterus.- Panel Discussion.- List of Participants.