Letter from Howard Walter Florey to A E White, Medical Research Council, Park Crescent, London Pleased Council has agreed to provide grant for purchase of preparative ultracentrifuge - appreciates Council's desire that they should get an MSE model rather than a Spinco model - sets out reasons why they should in fact get a Spinco model - staff assure him that an MSE would not be a substitute for this. 18 December 1961