Letter from Howard Walter Florey to F J C Herrald, Medical Research Council, Old Queen Street, London Thanks for letter about preparation of cephalosporin C - hopes it is clear to the Clinical Trials Committee that his arrangement with the National Research Development Corporation and Glaxo is that they supply the first 100 grams of cephalosporin C to the department - comments on this - not so interested in cephalosporin N from clinical point of view - Abraham cannot remember clearly what Committee recommended about future preparation of cephalosporins C and N and wondered if Minutes would be circulated. 3 February 1956