Freeman Bibliographical Database
| Identifier: | F3408 |
| Date: | 1861--1937 |
| Concise reference: | Darwin C, R. 1937. [Letter to Cuthbert Collingwood, 1861]. In Sarton, G. Darwin's conception of the theory of natural selection. Isis 26: 336-40. |
| Identifier: | F3408 |
| Date: | 1861--1937 |
| Concise reference: | Darwin C, R. 1937. [Letter to Cuthbert Collingwood, 1861]. In Sarton, G. Darwin's conception of the theory of natural selection. Isis 26: 336-40. |