Freeman Bibliographical Database
| Identifier: | F1940 |
| Date: | 1870.06.17 |
| Concise reference: | Darwin, C. R. 1870. [Letter of apology regarding the honorary degree ceremony at Oxford]. Oxford University Gazette 1(20) (17 June): 5. |
| Detailed reference: | (John van Wyhe 2007, 2025) |