The Replication Cycle of RNA Bacteriophages; Double-Stranded Viral RNA; The Translation of Viral Messenger RNA in Vitro; Conformation of Viral Nucleic Acids in Situ; Studies on the Herpes-Type Virus Recovered from the Burkitt's Tumor and Other Human Lymphomas; The Morphology of Virus-Antibody Interaction; Beetle Transmission of Plant Viruses; Alfalfa Mosaic Virus.