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From Henry Doubleday 26 January 1857
Summary
Sends specimens of Tortrix, which illustrate the extraordinary variation of markings in two or three species. In every family of Lepidoptera there seem to be species extremely prone to vary and in some localities they vary more than in others.
| Author: | Henry Doubleday |
| Addressee: | Charles Robert Darwin |
| Date: | 26 Jan 1857 |
| Classmark: | DAR 162: 235 |
| Letter no: | DCP-LETT-2044 |
Document type
| letter | (1) |
Author
| Doubleday, Henry | (1) |
