Freeman Bibliographical Database
| Identifier: | F1559 |
| Date: | 1969 |
| Concise reference: | Darwin, Francis ed. 1969. The foundations of The origin of species, a sketch written in 1842. New York: Kraus Reprint. |
| Detailed reference: | 1559. 1969 New York, Kraus Reprint. Facsimile of F1555. |