| Reference number | NLB/10/415 |
| Alternative reference number | NLB/10 p198 |
| Level | Item |
| Title | Copy letter from Herbert Rix, to Professor Hartley, Fellow of the Royal Society |
| Date | 21 November 1894 |
| Description | Herewith Rix sends Hartley revise of his plate with lettering added [not attached]. If Hartley prefers it they can put a line right round each spectrum but the Secretaries seem to think that the line as engraved is neater, and keeps the spectra quite sufficiently distinct. Asks for this to be returned for press at Hartley's earliest convenience. |
| Extent | 1p |
| Format | Carbon |
| Access status | Open |