F.75-F.81: '50 Years of Penicillin Application', a Symposium in Honour of Abraham organized by the Technische Universität Berlin, West Berlin, 9-12 September 1990. Abraham gave a lecture entitled 'From Penicillins to Cephalosporins'. (The lecture was published in a book 50 Years of Penicillin Application - History and Trends, Technische Universität Berlin). Includes correspondence regarding arrangements and arising, 2pp manuscript and 1p typescript notes, 6pp and...