Freeman Bibliographical Database
| Identifier: | F1790 |
| Date: | 1880.12.30 |
| Concise reference: | Darwin, C. R. 1880. Black sheep. Nature. A Weekly Illustrated Journal of Science 23 (30 December): 193. |
| Detailed reference: | 1790. 1880 Black sheep. Nature, London., vol. 23, p. 193. Undated letter containing extracts from a letter from 'Mr Sanderson'. |