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To Asa Gray 20 April [1863]
Summary
Fears England and U. S. will drift into war; he and AG must "keep to Science".
Thanks for facts on Incas; regrets he has always avoided the case of man.
Has sent his Linum paper [Collected papers 2: 93–105].
Is it true that Ohio has legislated against marriage of cousins?
Can AG explain the invariable angles in phyllotaxy; are they the consequence of packing in the early bud?
Owen’s comments on heterogeny in the Athenæum [28 Mar 1863] have vexed W. B. Carpenter; CD has replied [Collected papers 2: 78–80].
Hopes AG will observe Gymnadenia; John Scott has been experimenting on its fertilisation.
Gives his observation on pollination of Cypripedium.
| Author: | Charles Robert Darwin |
| Addressee: | Asa Gray |
| Date: | 20 Apr [1863] |
| Classmark: | Gray Herbarium of Harvard University (51) |
| Letter no: | DCP-LETT-4110 |
Document type
| letter | (1) |
Author
| Darwin, C. R. | (1) |
Addressee
| Gray, Asa | (1) |
Correspondent
| Darwin, C. R. | (1) |
| Gray, Asa |
