From Hubert Airy 17 March 1873
Summary
Thanks for congratulations on appearance of abstract of HA’s paper [Nature 7 (1873): 343–4].
Explains again his theory of "contraction with twist" by which compact buds and a spiral phyllotaxy have evolved. Explains how the peculiar phyllotaxy of the teasel is explicable by this process of "condensation".
| Author: | Hubert Airy |
| Addressee: | Charles Robert Darwin |
| Date: | 17 Mar 1873 |
| Classmark: | DAR 159: 26 |
| Letter no: | DCP-LETT-8812 |
From William Pengelly 17 March 1873
Summary
CD’s notice in Nature [Collected papers 2: 171–2] induces WP to send letters from correspondents recounting stories of a dog that learned to open a door and of another that found his way home from London to Cowes.
| Author: | William Pengelly |
| Addressee: | Charles Robert Darwin |
| Date: | 17 Mar 1873 |
| Classmark: | Pengelly ed. 1897, pp. 229–30 |
| Letter no: | DCP-LETT-8813 |
Document type
| letter | (2) |
Addressee
| Darwin, C. R. | (2) |
Correspondent
| Darwin, C. R. | (2) |
| Airy, Hubert | (1) |
| Pengelly, William | (1) |
