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1860-1869::1868::03::08 in date 
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From:
Alfred Russel Wallace
To:
Charles Robert Darwin
Date:
8 Mar [1868]
Source of text:
DAR 106: B51–2
Summary:

On critical exchanges at the Linnean Society on natural selection and mimicry.

Roland Trimen’s paper on South African mimetic butterflies ["On some remarkable mimetic resemblances among African butterflies", Trans. Linn. Soc. Lond. 26 (1870): 497–523; read 5 Mar 1868].

Contributor:
Darwin Correspondence Project
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From:
Henry Doubleday
To:
Charles Robert Darwin
Date:
8 Mar 1868
Source of text:
DAR 85: B47–8
Summary:

Proportion of sexes in Lepidoptera.

Sexual preference.

Role of coloration [see Descent 1: 311–12].

Contributor:
Darwin Correspondence Project
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From:
William Sweetland Dallas
To:
Charles Robert Darwin
Date:
8 Mar 1868
Source of text:
DAR 162: 18
Summary:

Expresses his pleasure at the opportunity of meeting CD.

Contributor:
Darwin Correspondence Project