To A. R. Wallace 22 February [1868]
Summary
Reports work on sexual selection. Problems with the relative numbers of the two sexes and polygamy. Asks ARW’s help with several questions on polygamous birds.
| Author: | Charles Robert Darwin |
| Addressee: | Alfred Russel Wallace |
| Date: | 22 Feb [1868] |
| Classmark: | The British Library (Add MS 46434: 104–5) |
| Letter no: | DCP-LETT-5912 |
To A. R. Wallace 27 February [1868]
Summary
Pleased by ARW’s response to Pangenesis.
On negative reception by his friends.
Further argument concerning sterility and natural selection.
Polygamy and sexual selection.
Protection.
| Author: | Charles Robert Darwin |
| Addressee: | Alfred Russel Wallace |
| Date: | 27 Feb [1868] |
| Classmark: | The British Library (Add MS 46434: 108–11) |
| Letter no: | DCP-LETT-5940 |
From Alfred Russel Wallace 7 February 1868
Summary
Thanks for Variation.
Reports work on his travel book [The Malay Archipelago (1869)].
| Author: | Alfred Russel Wallace |
| Addressee: | Charles Robert Darwin |
| Date: | 7 Feb 1868 |
| Classmark: | DAR 106: B48 |
| Letter no: | DCP-LETT-5848 |
From A. R. Wallace 24 February 1868
Summary
Responds to CD’s queries on polygamy in birds and orang.
Discusses sexual selection and secondary characters; colours and sexual preference.
Expresses his admiration for Pangenesis; it is superior to Herbert Spencer’s theory.
ARW differs somewhat with CD’s chapter on causes of variability [ch. 22 in Variation]. Thinks several of CD’s arguments are unsound.
Briefly discusses how natural selection might aid in producing sterility between allied species.
| Author: | Alfred Russel Wallace |
| Addressee: | Charles Robert Darwin |
| Date: | 24 Feb 1868 |
| Classmark: | DAR 106: B70–2, DAR 86: A10–11 |
| Letter no: | DCP-LETT-5922 |
| letter | (4) |
| Darwin, C. R. | (2) |
| Wallace, A. R. | (2) |
| Darwin, C. R. | (2) |
| Wallace, A. R. | (2) |
