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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 |
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 |
Correspondent
Darwin, C. R. | (2) |
Hellins, John | (2) |