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