C.211: Notebook inscribed 'Margaret Ann Keren Pill', June 1949-March 1950. Notes regarding experiments on various compounds including ayfavin, penicillin and cephalosporins, with index and further notes from back. C.212: Notebook inscribed 'Ann Pill', 1950-1951. Notes mostly regarding experiments on Cephalosporin N, with index from opposite end. C.212A: Notebook in the hand of Ann Pill, undated. Headed 'Methods and preparations' on the first page. Brief notes,…