| Reference number | NLB/61/480 |
| Alternative reference number | NLB/61 p278 |
| Level | Item |
| Title | Copy letter from Francis Alexander Towle, Assistant Secretary of the Royal Society; to the Director of the Dominion Observatory; Ottawa, Canada |
| Date | 11 July 1921 |
| Description | Informs the Director that Council have authorised the dispatch of the Society's 'Philosophical Transactions A' and 'Proceedings A' in exchange for the publications of their Observatory. |
| Extent | 1p |
| Format | Carbon |
| Access status | Open |