| Reference number | NLB/56/399 |
| Alternative reference number | NLB/56 p234 |
| Level | Item |
| Title | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to the Secretary of the Ministry of Food; Palace Chambers |
| Date | 29 January 1919 |
| Description | Informs the Secretary that he can find no trace of 'Courtois: Traite des Moteurs, Tome 1. 1846' in the books that Sir Henry Thompson had in use when he was working at the Society in summer. |
| Extent | 1p |
| Format | Carbon |
| Access status | Open |