3 Items
Page: 1
From John Hellins 10 May 1869
Summary
Notes sex ratios in Lepidoptera he is breeding.
| Author: | John Hellins |
| Addressee: | Charles Robert Darwin |
| Date: | 10 May 1869 |
| Classmark: | DAR 166: 138 |
| Letter no: | DCP-LETT-6745 |
From John Hellins 16 December 1868
Summary
Results of his breeding have not borne out his opinion that females are more numerous in Lepidoptera [see Descent 1: 313]. Still convinced he is right, suggests only way to settle question is by controlled breeding of large numbers of each species.
| Author: | John Hellins |
| Addressee: | Charles Robert Darwin |
| Date: | 16 Dec 1868 |
| Classmark: | DAR 85: B76–7, B84 |
| Letter no: | DCP-LETT-6506 |
From John Hellins 20 April 1868
Summary
Gives the evidence on which he relied for his view, which CD thinks is erroneous, of proportion of sexes in Lepidoptera.
| Author: | John Hellins |
| Addressee: | Charles Robert Darwin |
| Date: | 20 Apr 1868 |
| Classmark: | DAR 85: B71–75, B79–82 |
| Letter no: | DCP-LETT-6133 |
Addressee
| Darwin, C. R. | (3) |
Correspondent
| Darwin, C. R. | (3) |
| Hellins, John | (3) |
