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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
From:
Charles Robert Darwin
To:
John Jenner Weir
Date:
27 Mar [1868]
Source of text:
Linnean Society of London (Quentin Keynes Collection)
Summary:

Thanks for information [about sex ratios] received from bird-catchers.

"Can you form any theory about all the many cases which you have given me and others which have been published, of when one pair is killed, another soon appearing?"

Facts about gay-coloured caterpillars very satisfactory.

Comments on Pangenesis.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Roland Trimen
Date:
27 Mar [1868]
Source of text:
DAR 82: A119–20
Summary:

Thanks RT for letter which saves him from a "terrible mistake": that no moths were more brilliantly coloured beneath than above. Suggests revised version for comment. [See Descent 1: 397.]

Contributor:
Darwin Correspondence Project
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Text Online
From:
Charles Robert Darwin
To:
Alfred Russel Wallace
Date:
27 March [1868]
Source of text:
  • British Library, The: BL Add. 46434 ff. 123-124
  • Marchant, J. (Ed.). (1916). In: Alfred Russel Wallace; Letters and Reminiscences. Vol. 1. London & New York: Cassell & Co. [pp. 206-207]
Summary:

No summary available.

Contributor:
Alfred Russel Wallace Correspondence Project