Letter from Howard Walter Florey to H Smith, Microbiological Research Establishment, Porton Hopes that Smith will not think that he does not think highly of the aspects of Smith's work with which he is familiar - has no real knowledge of biochemical aspects of Smith's work - as Smith is applying for Chair of Biochemistry, Kig's Collge, London, thinks it would be better if he did not write a vague reference for Smith - sure Smith can find referees who can assess his work from biochemists' point of view. 15 February 1960