| Reference number | NLB/5/726 |
| Alternative reference number | NLB/5 p291 |
| Level | Item |
| Title | Copy letter from an unknown correspondent, to the publishers of "Nature", 29 Bedford Stree, Strand |
| Date | 29 September 1891 |
| Description | 'With reference to your note of yesterday's date, kindly let me know whether you have obtained Professor Ewing's consent to the use of the four illustrations you name'. |
| Extent | 1p |
| Format | Carbon |
| Access status | Open |