From Asa Gray [August 1857]
Summary
States he has "misgivings about the definiteness of species". Believes there is some inherent tendency for plants to originate varieties. Cross-fertilisation is likely in most cases but sees difficulties with plants like Adlumia.
| Author: | Asa Gray |
| Addressee: | Charles Robert Darwin |
| Date: | [Aug 1857] |
| Classmark: | DAR 165: 100, 101 |
| Letter no: | DCP-LETT-2129 |
Matches: 8 hits
- … Gray, Asa Darwin, C. R. …
- … From Asa Gray [August 1857] …
- … DAR 165: 100, 101 Asa Gray unstated [Aug 1857] Charles Robert Darwin …
- … letter falls between the letters to Asa Gray , 20 July [1857] and 5 September [1857] . …
- … Gray is responding to CD’s letter to Asa Gray, 20 July [1857] , in which CD revealed his …
- … See the earlier discussion of this point in the letter to Asa Gray, 18 June [1857] , …
- … and the letter from Asa Gray, 7 July 1857 . …
- … See letter to Asa Gray, 20 July [1857] . The chapter numbers refer to chapter 3, ‘On the …
To J. D. Hooker 22 August [1857]
Summary
Tabulation of varieties goes on; very important as it shows the branching of forms. Mentions his principle of divergence.
| Author: | Charles Robert Darwin |
| Addressee: | Joseph Dalton Hooker |
| Date: | 22 Aug [1857] |
| Classmark: | DAR 114: 208 |
| Letter no: | DCP-LETT-2134 |
To J. D. Hooker 1 August [1857]
Summary
Important issue at stake with new flora calculations: evidence that species are only strongly marked varieties. Planning large-scale survey.
| Author: | Charles Robert Darwin |
| Addressee: | Joseph Dalton Hooker |
| Date: | 1 Aug [1857] |
| Classmark: | DAR 114: 206, 207 |
| Letter no: | DCP-LETT-2130 |
Document type
| letter | (3) |
Author
| Darwin, C. R. | (2) |
| Gray, Asa | (1) |
Addressee
| Hooker, J. D. | (2) |
| Darwin, C. R. | (1) |
Correspondent
| Darwin, C. R. | (3) |
| Hooker, J. D. | (2) |
| Gray, Asa | (1) |
Search:
Gray, Asa in keywords
1 Items
Darwin in Conversation exhibition
Summary
Meet Charles Darwin as you have never met him before. Come to our exhibition at Cambridge University Library, running from 9 July to 3 December 2022, and discover a fascinating series of interwoven conversations with Darwin's many hundreds of…
Matches: 1 hits
- … 9 July – 3 December 2022 Milstein Exhibition Centre, Cambridge University …
