| Reference number | NLB/44/617 |
| Alternative reference number | NLB/44 p372 |
| Level | Item |
| Title | Copy letter from Robert William Frederick Harrison [signed by Theodore E James] to Messrs Harrison & Sons |
| Date | 30 September 1911 |
| Description | 'In reply to your letter of September 29, we do not know the paper by G Stead on the Differences of Anode and Kathode Spectra.' |
| Extent | 1p |
| Format | Carbon |
| Access status | Open |