To G. H. K. Thwaites 19 May [1868]
Summary
GHKT should not take more trouble about human expression. Discusses contraction of orbicular muscles in elephants.
Asks about colour of first plumage of breeds of Ceylon fowls in which hens alone are coloured.
| Author: | Charles Robert Darwin |
| Addressee: | George Henry Kendrick Thwaites |
| Date: | 19 May [1868] |
| Classmark: | American Philosophical Society (Mss.B.D25.342) |
| Letter no: | DCP-LETT-6184 |
Document type
| letter | (1) |
Author
| Darwin, C. R. | (1) |
Addressee
Correspondent
| Darwin, C. R. | (1) |
| Thwaites, G. H. K. | (1) |
