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DCP-LETT-6164

From:
Charles Robert Darwin
To:
Otto Staudinger
Date:
6 May [1868]
Source of text:
DAR 147: 491
Summary:

Asks about the ratio of male to female Lepidoptera.

Contributor:
Darwin Correspondence Project

DCP-LETT-6192

From:
Charles Robert Darwin
To:
Otto Staudinger
Date:
20 May 1868
Source of text:
DAR 147: 492
Summary:

Thanks for information on sex ratios of Lepidoptera.

Agrees that entomologists have best means of proving derivation of species.

Contributor:
Darwin Correspondence Project
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