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DCP-LETT-1113

From:
Charles Robert Darwin
To:
Mary Anne Theresa Whitby
Date:
2 Sept [1847]
Source of text:
American Philosophical Society (Mss.B.D25.61)
Summary:

Questions Mrs W on difference in flight capacity of male and female silkworm moths and asks her for results of experiments he suggested she do with silkworms to determine hereditariness of dark "eyebrows". [See Variation 1: 302.]

Contributor:
Darwin Correspondence Project

DCP-LETT-1128

From:
Charles Robert Darwin
To:
Mary Anne Theresa Whitby
Date:
14 Oct [1847]
Source of text:
Lehigh University Libraries Special Collections (Honeyman Collection)
Summary:

Thanks for a suite of male and female specimens of Lepidoptera. Lack of difference in size of wings surprises CD; the female’s being smaller than male’s in early growth is new to him. Will ask a friend in India for comparable facts.

Contributor:
Darwin Correspondence Project
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