Letter from C O S Blythe Brooke, Public Health Department, Finsbury Health Centre, London to Howard Walter Florey Professor L Garrod told him of developments which had arisen from his Brooke's putting Professor Brotzu in contact with Florey - comments on this - asks if Florey has reprint of 'Antibiotic products of a versatile fungus {cephalosporin]'. 4 January 1957