63 nations of the world represented at the first International Congress of Diseases of the Chest - took place in Rome under the sponsorship of the American College of Chest Physicians at the Barbarinis Palace to encourage free usage of scientific knowledge among all peoples of the world. Photo shows Dr. Jay Arthur Myams presenting the Gold Medal for outstanding achievements to Sir Alexander Fleming - 18th September 1950 - Sir Alexander Fleming (6 August 1881 - 11 March 1955) was a Scottish biologist and pharmacologist who published many articles on bacteriology, immunology, and chemotherapy. His best-known achievements are the discovery of the enzyme lysozyme in 1922 and isolation of the antibiotic substance penicillin from the fungus Penicillium notatum in 1928, for which he shared a Nobel Prize in 1945. 固opFoto