Freeman Bibliographical Database
| Identifier: | F1958 |
| Date: | Undated |
| Concise reference: | Darwin, C. R. n.d. [Printed acknowledgement of correspondence]. np: np. [post 1868, c. 1860s-1870s] |
| Identifier: | F1958 |
| Date: | Undated |
| Concise reference: | Darwin, C. R. n.d. [Printed acknowledgement of correspondence]. np: np. [post 1868, c. 1860s-1870s] |