| Reference number | NLB/72/534 |
| Alternative reference number | NLB/72 p288 |
| Level | Item |
| Title | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to the Secretary of the Aeronautical Research Committee; National Physical Laboratory |
| Date | 3 December 1929 |
| Description | In reply to the Secretary's letter, informs him that Mr Johansen's paper has not yet been published, and asks him to make further application once the paper has been printed. |
| Extent | 1p |
| Format | Carbon |
| Access status | Open |