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Hellins, John in correspondent 
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DCP-LETT-6133

From:
John Hellins
To:
Charles Robert Darwin
Date:
20 Apr 1868
Source of text:
DAR 85: B71–75, B79–82
Summary:

Gives the evidence on which he relied for his view, which CD thinks is erroneous, of proportion of sexes in Lepidoptera.

Contributor:
Darwin Correspondence Project
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DCP-LETT-6506

From:
John Hellins
To:
Charles Robert Darwin
Date:
16 Dec 1868
Source of text:
DAR 85: B76–7, B84
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.

Contributor:
Darwin Correspondence Project
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DCP-LETT-6745

From:
John Hellins
To:
Charles Robert Darwin
Date:
10 May 1869
Source of text:
DAR 166: 138
Summary:

Notes sex ratios in Lepidoptera he is breeding.

Contributor:
Darwin Correspondence Project
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