Freeman Bibliographical Database
| Identifier: | F2752 |
| Date: | 1869--1897 |
| Concise reference: | Darwin, C. R. 1897. [Two letters to Gustav Jäger, 1869, 1875]. In H. G. Schlichter ed., Problems of nature: researches and discoveries of Gustav Jaeger, selected from his published writings. London: Williams and Norgate. |
| Detailed reference: | (John van Wyhe) |