| Reference number | NLB/28/484 |
| Alternative reference number | NLB/28 p261 |
| Level | Item |
| Title | Copy letter from Robert William Frederick Harrison, to H Dennis Taylor, Messrs Cooke & Sons' Optical Works, York |
| Date | 14 March 1904 |
| Description | At Sir William Abney's request Dennis Taylor's paper on 'A practical method of computing the oblique foci of optical systems' is being returned on the understanding that having been withdrawn, it is regarded as not having been communicated to the Royal Society. Harrison seeks assurance that this point is understood. |
| Extent | 1p |
| Format | Carbon |
| Physical description | Typescript |
| Access status | Open |