To Henry Denny 23 March [1865]
Summary
Interested by HD’s information on aperea; CD had concluded that it was not the progenitor of domestic guinea-pigs.
Is unsure what HD means by "stock-dove"; properly this is Columba oenas and the domestic pigeon is C. livia.
Suggests that the Zoological Society might arrange for some specimens [unspecified] to be supplied from the Gardens.
| Author: | Charles Robert Darwin |
| Addressee: | Henry Denny |
| Date: | 23 Mar [1865] |
| Classmark: | American Philosophical Society (Mss.B.D25.120) |
| Letter no: | DCP-LETT-2435 |
To Henry Denny 17 January [1865]
Summary
Pleased to learn that HD has resumed research on Anoplura.
Are Chiloe pediculi a distinct species?
Do lice differ on different races of humans?
Is there evidence supporting Mr Marshall’s statement about Polynesian lice?
| Author: | Charles Robert Darwin |
| Addressee: | Henry Denny |
| Date: | 17 Jan [1865] |
| Classmark: | Alfred Denny Museum, University of Sheffield |
| Letter no: | DCP-LETT-4747F |
To Henry Denny 28 January [1865]
Summary
Returns [Andrew] Murray’s paper;
especially values HD’s note that the same species of lice infect the different varieties of fowl, pigeon, and dog. Further queries about the relationship of the same species of pediculi to different domestic varieties.
| Author: | Charles Robert Darwin |
| Addressee: | Henry Denny |
| Date: | 28 Jan [1865] |
| Classmark: | Alfred Denny Museum, University of Sheffield |
| Letter no: | DCP-LETT-4756F |
