| RefNo | HD/12/2/6 | 
| Previous numbers | 93HD.47.13.10 | 
| Level | Item | 
| Title | Copy Dale to Dr S J Folley, National Institute for Research in Dairying | 
| Date | 1 March 1943 | 
| Description | He has located the remainder of the 'substance E' with Bryan Matthews, and asks how much Folley will require as it should only be used 'with great economy' | 
| Extent | 1p | 
| Format | Carbon copy | 
| AccessStatus | Open | 
| AccessConditions | OPEN - but with some restrictions |