| Reference number | MC/21/403 |
| Alternative reference number | MC.06403 |
| Level | Item |
| Title | Letter from [Archibald Byron] Macallum, University of Toronto, Physiology, to the Secretaries of the Royal Society |
| Creator | Macallum; Archibald Byron (1858-1934) |
| Date | 15 May 1096 |
| Description | Regarding Macallum's election as a Fellow of the Royal Society and admission. |
| Extent | 2p |
| Format | Manuscript |
| Physical description | Ink on paper |
| Access status | Open |