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To Hugo de Vries 6 September 1879
Summary
Perhaps movement from side to side in plants is caused by the contraction of one side, rather than the expansion of the other.
Sends seeds of Lychnis Githago: he observed the hypocotyledenous stem, not the root, contracting.
| Author: | Charles Robert Darwin |
| Addressee: | Hugo de Vries |
| Date: | 6 Sept 1879 |
| Classmark: | Artis Library (De Vries 7) |
| Letter no: | DCP-LETT-12219F |
Document type
| letter | (1) |
Correspondent
| Darwin, C. R. | (1) |
| Vries, Hugo de | (1) |
