Freeman Bibliographical Database
| Identifier: | F2031 |
| Date: | 1882 |
| Concise reference: | Darwin, C. R. 1882. [Extract from a letter on the origin of mammals]. In Savile, Bourchier Wrey. The late Mr. Darwin. Record n.s. 1: 149. |
| Detailed reference: | (John van Wyhe) |