Letter from Howard Walter Florey to Theodore Koppanyi, Georgetown University, Washington, DC Says he had a pleasant journey back to Oxford - thanks Koppanyi for his splendid organisation and entertainment - hopes Koppanyi is recovering from the strain of organising (symposium) - is enclosing revised copy of his talk - this does not include his final remarks, the manuscript of which he gate to Koppanyi. 7 November 1964