| Reference number | NLB/50/736 |
| Alternative reference number | NLB/50 p446 |
| Level | Item |
| Title | Copy letter from Robert William Frederick Harrison, to Dr W H Duffield |
| Date | 27 october 1914 |
| Description | Returns his paper on 'The effect of pressure upon Arc Spectra' for revision in accordance with the letter of 14 July. |
| Extent | 1p |
| Format | Carbon |
| Physical description | Typescript |
| Access status | Open |