F.68-F.71: Hoechst Workshop Conference on 'Regulation of Secondary Metabolite Formation', Schloss Gracht, Germany, 12-16 May 1985. Abraham gave a lecture 'Enzymes Involved in Penicillin and Cephalosporin Formation'. Includes correspondence regarding arrangements and arising, a 3pp incomplete manuscript draft of Abraham's lecture with revisions' and a 14pp typescript of the lecture with additional pages of bibliographic references for possible publication. F.72-F.74: 17th FEBS...