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From Asa Gray 7 July 1863
Summary
Has extracted CD’s Linum paper [Am. J. Sci. 2d ser. 36 (1863): 279–84].
Elaborate co-adaptations of orchids and insects demonstrate against "chance blows", whether few, as Oswald Heer would have, or many and slight as CD proposes.
| Author: | Asa Gray |
| Addressee: | Charles Robert Darwin |
| Date: | 7 July 1863 |
| Classmark: | DAR 165: 127, 137 |
| Letter no: | DCP-LETT-4234 |
