Letter from Howard Walter Florey to E Mellanby, Medical Research Council Have agreed to work on the chemical side with ICI provided that supply material (penicillin) - ICI refuses to cooperate with the TRC and are tackling matter in an exclusively commercial way - American firms are all collaborating - discusses stopping of publication by the Americans - desirable for Anglo-American cooperation - is first necessary to break down the purely commercial outlook of ICI - agreement possible if arrangement made for silmultaneous publication of data after war - should be discussed by representatives of ICI and the TRC and, if agreement reached, tell private labs it is undesirable to publish data. 11 February 1942