| Reference number | NLB/72/34 |
| Alternative reference number | NLB/72 p18 |
| Level | Item |
| Title | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to Messrs Harrison and Sons |
| Date | 25 January 1929 |
| Description | Discusses how long blocks illustrating the Proceedings and Philosophical Transactions should be stored for, and suggests storing them for 5 years after publication before they are destroyed. |
| Extent | 1p |
| Format | Carbon |
| Access status | Open |