| Reference number | NLB/71/197 |
| Alternative reference number | NLB/71 p101 |
| Level | Item |
| Title | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; [to Harrison and Sons?] |
| Date | 8 February 1928 |
| Description | Asks for a further search of the blocks for the plates found in the paper by [Charles Thomson Rees] Wilson in Proceedings A,104 ['Investigations on X-rays and ß-rays by the cloud method']. Odhams Press states the blocks are still with them. The letter is not addressed. |
| Extent | 1p |
| Format | Carbon |
| Access status | Open |