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From H. C. Watson 14 December [1857]
Summary
Will shortly return CD’s list of varieties of British plants. Discusses the situations in which different varieties of species are often found and the ranges of varieties relative to those of the species.
| Author: | Hewett Cottrell Watson |
| Addressee: | Charles Robert Darwin |
| Date: | 14 Dec [1857] |
| Classmark: | DAR 98: A11–12 |
| Letter no: | DCP-LETT-2183 |
From H. C. Watson 20 December [1857]
Summary
Finds he cannot annotate CD’s list of subspecies and varieties as wanted. Mentions again his difficulties with "species"; he "cannot find the proof of species being definite and immutable whatever they may seem to be at any one time and spot".
| Author: | Hewett Cottrell Watson |
| Addressee: | Charles Robert Darwin |
| Date: | 20 Dec [1857] |
| Classmark: | DAR 98: A13–14 |
| Letter no: | DCP-LETT-2190 |
