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From:
Charles Robert Darwin
To:
Alfred Russel Wallace
Date:
17 [Mar 1868]
Source of text:
The British Library (Add MS 43434: 115–17)
Summary:

On his Primula paper for the Linnean Society ["On the specific difference between Primula veris, Brit. Fl. (var. officialis, Linn.), P. vulgaris, Brit. Fl. var. acaulis, Linn.), and P. elatior, Jacq.; and on the hybrid nature of the common oxlip; with supplementary remarks on naturally produced hybrids of the genus Verbascum", [officinalis!?] J. Linn. Soc. Lond. (Bot.) 10 (1869): 437–54].

Peacocks and sexual selection.

ARW’s sterility argument has driven CD’s sons half-mad.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Alfred Russel Wallace
Date:
[21 Mar 1868]
Source of text:
The British Library (Add MS 46434: 119–20); DAR 106: B160–3
Summary:

On problem of sterility, CD cannot persuade himself that it has been gained by natural selection.

On sexual selection and minute variations, he tends to agree with ARW. Sends George Darwin’s notes on ARW’s argument.

Contributor:
Darwin Correspondence Project
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From:
Charles Robert Darwin
To:
Alfred Russel Wallace
Date:
27 Mar [1868]
Source of text:
The British Library (Add MS 46434: 123–4)
Summary:

There are so many doubtful points on the problems relating to sterility that they will never agree.

Contributor:
Darwin Correspondence Project