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DCP-LETT-9543

From:
George John Romanes
To:
Charles Robert Darwin
Date:
10 July 1874
Source of text:
DAR 52: D1–2, 10–14
Summary:

Sets out some of his ideas on the effects of disuse on an organ. Disuse as a cause of reduction.

Contributor:
Darwin Correspondence Project
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DCP-LETT-9549

From:
Charles Robert Darwin
To:
George John Romanes
Date:
16 July 1874
Source of text:
American Philosophical Society (Mss.B.D25.444)
Summary:

Thanks GJR for his letter, regrets pressure of other work prevents his giving GJR’s remarks the attention they deserve. GJR makes clearer how an organ that has started to decrease will go on decreasing.

Contributor:
Darwin Correspondence Project

DCP-LETT-9563

From:
George John Romanes
To:
Charles Robert Darwin
Date:
24 July 1874
Source of text:
DAR 52: D3–7
Summary:

Encloses a copy of a letter from H. Spencer giving his opinion on GJR’s views on disuse and a draft of GJR’s reply to Spencer.

Contributor:
Darwin Correspondence Project
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DCP-LETT-10986

From:
George John Romanes
To:
Charles Robert Darwin
Date:
6 June 1877
Source of text:
E. D. Romanes 1896, p. 53; DAR 47: 139–42
Summary:

Sends MS notes on intercrossing.

Describes different reactions of rabbits and guinea-pigs to stinging nettles.

Has made a number of grafts at Kew.

Encloses notes on natural selection; discussion of factors mitigating the swamping influence of intercrossing on incipient variations.

Contributor:
Darwin Correspondence Project
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