| Reference number | NLB/52/79 |
| Alternative reference number | NLB/52 p47 |
| Level | Item |
| Title | Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society to the Secretary, Institution of Mechanical Engineers |
| Date | 6 August 1915 |
| Description | 'In reply to your letter of the 4th instant, as the meetings of this Society are invariably held on Thursday afternoons obviously they will not clash with your which appear to be held on Friday evenings.' |
| Extent | 1p |
| Format | Carbon |
| Access status | Open |