From J. D. Hooker [2 December 1857]
Summary
News of Mrs Henslow’s death.
Studying Impatiens, which bears on CD’s problems. Though genus is endemic to India, with over 100 species, CD will be glad to know they do not run into one another.
| Author: | Joseph Dalton Hooker |
| Addressee: | Charles Robert Darwin |
| Date: | [2 Dec 1857] |
| Classmark: | DAR 104: 178–9 |
| Letter no: | DCP-LETT-2178 |
To William Sharpey 9 April [1857]
Summary
Recommendations of books of general interest [for the Royal Society library]. These include [Louis] Agassiz’s works, [William] McGillivray’s [History of] British birds, and David Low’s [On the domesticated animals of the British Islands].
Comments on current candidates for the Royal Society.
| Author: | Charles Robert Darwin |
| Addressee: | William Sharpey |
| Date: | 9 Apr [1857] |
| Classmark: | DAR 249: 128 (photocopy) |
| Letter no: | DCP-LETT-2073F |
From Asa Gray 16 February 1857
Summary
Discusses the ranges of alpine species in U. S. and considers the possible migration routes of such species from Europe.
Lists those U. S. genera which he considers protean and describes the U. S. character of some genera which are protean in Europe.
Describes how he distinguishes introduced and aboriginal stocks of the same species.
| Author: | Asa Gray |
| Addressee: | Charles Robert Darwin |
| Date: | 16 Feb 1857 |
| Classmark: | DAR 165: 96 |
| Letter no: | DCP-LETT-2053 |
| Darwin, C. R. | (1) |
| Gray, Asa | (1) |
| Hooker, J. D. | (1) |
| Darwin, C. R. | (2) |
| Sharpey, William | (1) |
| Darwin, C. R. | (3) |
| Gray, Asa | (1) |
| Hooker, J. D. | (1) |
| Sharpey, William | (1) |
