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DCP-LETT-2129

From:
Asa Gray
To:
Charles Robert Darwin
Date:
[Aug 1857]
Source of text:
DAR 165: 100, 101
Summary:

States he has "misgivings about the definiteness of species". Believes there is some inherent tendency for plants to originate varieties. Cross-fertilisation is likely in most cases but sees difficulties with plants like Adlumia.

Contributor:
Darwin Correspondence Project
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DCP-LETT-2130

From:
Charles Robert Darwin
To:
Joseph Dalton Hooker
Date:
1 Aug [1857]
Source of text:
DAR 114: 206, 207
Summary:

Important issue at stake with new flora calculations: evidence that species are only strongly marked varieties. Planning large-scale survey.

Contributor:
Darwin Correspondence Project
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Text Online

HENSLOW-647

From:
Thomas Bell
To:
J. S. Henslow
Date:
1 August 1857
Source of text:
Cambridge University Library MS Add. 8177: 20
Summary:

Makes arrangements for JSH to stay with him in London and for possible meeting with Hooker.

Contributor:
Henslow Correspondence Project
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