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To J. D. Hooker 5 July [1857]
Summary
Does JDH’s Wahlenbergia confirm CD’s law? Variations of one species assume the character of a distinct but allied species or genus.
Seed-salting: old ones float and germinate.
Owen’s "grand paper" [? J. Proc. Linn. Soc. Lond. (Zool.) 2 (1858): 1–37].
| Author: | Charles Robert Darwin |
| Addressee: | Joseph Dalton Hooker |
| Date: | 5 July [1857] |
| Classmark: | DAR 114: 203 |
| Letter no: | DCP-LETT-2117 |
