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 2pp incomplete manuscript drafts with revisions, 10pp typescript version with manuscript corrections and 1p manuscript list of references, 11pp typescript final version (for publication), and correspondence regarding publication with expanded typescript version and corrected proofs.

F.82-F.83: Penicillin Symposium, University of Oxford, 28 September 1990. The event was held to mark the 50th anniversary of the publication of the paper on penicillin in the Lancet which described animal experiments. Abraham gave a lecture entitled 'Penicillin F and its B-lactam descendants: chance, motivation and personalities'. Includes correspondence regarding arrangements and arising, 1p of typescript notes for Abraham's lecture, and a 1p typescript entitled 'Extract from the Will of Sir William Dunn'.

F.84-F.85: Science and Medicine Conference, Royal College of Physicians, London, 6 and 7 November 1991. Abraham gave a lecture entitled 'Overview: past history of penicillins and cephalosporins'. Includes correspondence regarding arrangements and arising, an 18pp typescript draft of the lecture, with manuscript corrections and revisions, and drafts for accompanying slides.

F.86-F.87: 'Phenoxymethylpenicillin amidohydrolase from penicillium chrysogenum'. Inscriptions on the drafts in F.86 indicate that the lecture was intended for a FEBS meeting. Includes a 9pp draft with manuscript revisions, inscribed '1st Draft', a draft draft with manuscript corrections, inscribed '2nd Draft - reversibility - 6-APA?', and 3 further drafts, one entitled '4th Draft Oct 1995, with manuscript notes written to Abraham by another.

F.88: 1 page of a manuscript draft of an unidentified lecture, n.d.