To Asa Gray 15 January 1872
Summary
Questions AG on earthworm activity in North America and would welcome information from northern Canada if AG has a correspondent there.
| Author: | Charles Robert Darwin |
| Addressee: | Asa Gray |
| Date: | 15 Jan 1872 |
| Classmark: | Archives of the Gray Herbarium, Harvard University (99) |
| Letter no: | DCP-LETT-8158 |
To Asa Gray 8 July [1872]
Summary
Thanks for AG’s book, How plants behave [see 8363].
Is correcting proofs of Expression.
| Author: | Charles Robert Darwin |
| Addressee: | Asa Gray |
| Date: | 8 July [1872] |
| Classmark: | Archives of the Gray Herbarium of Harvard University (107) |
| Letter no: | DCP-LETT-8402 |
To Asa Gray 22 October 1872
Summary
Spiralling of tendrils.
Has worked hard on Drosera.
Is interested in tracing the "nerves" of Dionaea which follow the vascular bundles. Finds he can paralyse half of the leaf by pricking it at a certain point.
Wishes AG to carry out two experiments on D. filiformis.
Has received AG’s Dubuque address [Am. J. Sci. 3d ser. 4 (1872): 282–98].
| Author: | Charles Robert Darwin |
| Addressee: | Asa Gray |
| Date: | 22 Oct 1872 |
| Classmark: | Gray Herbarium of Harvard University (100) |
| Letter no: | DCP-LETT-8568 |
From Asa Gray 2 February 1872
Summary
Notes the occurrence in U. S. of "vermiform piles" produced by earthworms.
| Author: | Asa Gray |
| Addressee: | Charles Robert Darwin |
| Date: | 2 Feb 1872 |
| Classmark: | DAR 165: 178 |
| Letter no: | DCP-LETT-8194 |
From Asa Gray 7 March 1872
Summary
A. S. Packard would like to visit CD to pay his respects.
| Author: | Asa Gray |
| Addressee: | Charles Robert Darwin |
| Date: | 7 Mar 1872 |
| Classmark: | DAR 165: 179 |
| Letter no: | DCP-LETT-8237 |
From Asa Gray 31 May 1872
Summary
Sends, via C. L. Brace, his book [Botany for young people, pt 2 How plants behave (1872)], "your own science adapted to juvenile minds".
| Author: | Asa Gray |
| Addressee: | Charles Robert Darwin |
| Date: | 31 May 1872 |
| Classmark: | DAR 165: 180 |
| Letter no: | DCP-LETT-8363 |
From Asa Gray 11 June 1872
Summary
O. N. Rood sends two copies of an amusing picture by T. F. Beard, "The young Darwinian" to AG, who forwards one to CD.
| Author: | Asa Gray |
| Addressee: | Charles Robert Darwin |
| Date: | 11 June 1872 |
| Classmark: | DAR 106: D13–14 |
| Letter no: | DCP-LETT-8381 |
From Asa Gray 6 October 1872
Summary
Discusses the coiling of tendrils of climbing plants.
AG’s recent tour of the U. S.
| Author: | Asa Gray |
| Addressee: | Charles Robert Darwin |
| Date: | 6 Oct 1872 |
| Classmark: | DAR 165: 181 |
| Letter no: | DCP-LETT-8545 |
From Asa Gray 2 December 1872
Summary
CD’s finding the nervous system of Dionaea is wonderful.
Coiling of tendrils of climbing plants.
Thanks CD for the new book [Expression].
| Author: | Asa Gray |
| Addressee: | Charles Robert Darwin |
| Date: | 2 Dec 1872 |
| Classmark: | DAR 165: 182 |
| Letter no: | DCP-LETT-8656 |
