Letter from Howard Walter Florey to M J Head, Spillers Limited, Animal Nutrition Research Laboratory, Middle Aston, Oxon Thanks for letter about possibility of their cutting some frozen sections - says laboratory is closed until end of August - are hoping to get latest machine for cutting frozen sections - when this arrives could cut some for Head - would like to know number wanted - will see if it is possible to do this in September, if this is not too late for Head's purposes. 10 August 1960