Freeman Bibliographical Database
| Identifier: | F1950 |
| Date: | 1871 |
| Concise reference: | Darwin, C. R. 1871. [Two letters to C. Boner]. In Kettle, R. M. ed., Memoirs and letters of Charles Boner, author of "Chamois hunting in Bavaria," &c. London: Richard Bentley and son. vol. 1: 76-8. |