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From:
Charles Robert Darwin
To:
William Turner Thiselton-Dyer
Date:
1 Apr 1881
Source of text:
Royal Botanic Gardens, Kew (Darwin: Letters to Thiselton-Dyer, 1873–81: ff. 214–15)
Summary:

Wants Monochaetum flowers for examination as he has forgotten the structure and cannot publish until he has repeated his observations and experiments.

Contributor:
Darwin Correspondence Project
From:
Mary (Marie) McElroy
To:
Charles Robert Darwin
Date:
1 Apr 1881
Source of text:
DAR 201: 23
Summary:

Asks whether blue eyes are peculiar to the human species.

Contributor:
Darwin Correspondence Project
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From:
Charles Robert Darwin
To:
William Turner Thiselton-Dyer
Date:
3 Apr [1881]
Source of text:
Royal Botanic Gardens, Kew (Darwin: Letters to Thiselton-Dyer, 1873–81: f. 216)
Summary:

Thanks for Monochaetum flowers; his old notes have now become intelligible.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Eben Jenks Loomis
Date:
4 Apr 1881
Source of text:
Yale University Library: Manuscripts and Archives (Loomis-Wilder Family Papers (MS 496A) Series 2, Box 6, folder 19)
Summary:

CD is familiar with EJL’s work [on Asplenium movements]; finds Asplenium an unusual case.

Contributor:
Darwin Correspondence Project
From:
Frithiof Holmgren
To:
Charles Robert Darwin
Date:
7 Apr 1881
Source of text:
DAR 166: 256
Summary:

Swedish anti-vivisectionists are claiming CD is opposed to animal experiments; Holmgren wishes CD to state his position.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
William Turner Thiselton-Dyer
Date:
9 Apr 1881
Source of text:
Royal Botanic Gardens, Kew (Darwin: Letters to Thiselton-Dyer, 1873–81: ff. 218–19)
Summary:

About Francis Darwin’s application for election to [Royal] Society.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Robert Francis Cooke; John Murray
Date:
10 Apr 1881
Source of text:
National Library of Scotland (John Murray Archive) (Ms. 42152 ff. 383–4)
Summary:

Asks for quick decision on publication [of Earthworms]. Does not care whether it is published on commission or on usual terms, but wants it published in a hurry. Cannot guess at sales.

Contributor:
Darwin Correspondence Project
From:
Louis Charles Joseph Gaston (Gaston) de Saporta, comte de Saporta
To:
Charles Robert Darwin
Date:
10 Apr 1881
Source of text:
DAR 177: 38
Summary:

Sends GdeS and A. F. Marion, L’évolution du règne végétal. Les cryptogames [1881].

Contributor:
Darwin Correspondence Project
From:
Robert Francis Cooke; John Murray
To:
Charles Robert Darwin
Date:
11 Apr 1881
Source of text:
DAR 171: 574
Summary:

Murray’s will be happy to publish [Earthworms] on usual terms of two-thirds profits.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Johann Friedrich Theodor (Fritz) Müller
Date:
12 Apr 1881
Source of text:
The British Library (Loan MS 10 no 51)
Summary:

Earthworm book with printer.

Has sent FM’s observations on paraheliotropism to Nature ["Movement of leaves", Collected papers 2: 228–9].

Plants with differently coloured anthers.

Intends gathering together his notes on "bloom".

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Robert Francis Cooke; John Murray
Date:
12 Apr 1881
Source of text:
National Library of Scotland (John Murray Archive) (Ms. 42152 ff. 385–6)
Summary:

Agrees that new book [Earthworms] be published on old terms. Hopes it will not fail.

CD is curious to read an essay on evolution by a Hindu, which is being sent to Murray from India.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Frithiof Holmgren
Date:
[14] Apr 1881
Source of text:
Uppsala University Library (Frithiof Holmgren Collection)
Summary:

CD gives his opinion on vivisection with the understanding that the whole letter will be published. Worked for Act of Parliament, but disapproves of the one passed. CD convinced English physiologists do not perform cruel experiments.

Contributor:
Darwin Correspondence Project
From:
Alexander Stephen Wilson
To:
Charles Robert Darwin
Date:
14 Apr 1881
Source of text:
DAR 181: 117
Summary:

Sends his last report on Russian wheat varieties [Gard. Chron. n.s. 15 (1881): 430–2].

Considers which part of grass embryo is the cotyledon.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Nature
Date:
14 Apr [1881]
Source of text:
Nature , 28 April 1881, pp. 603–4
Summary:

Summarises a letter from Fritz Müller [missing] giving details of leaf movement in Mucuna, Desmodium, and Bauhinia. CD is especially interested in the paraheliotropic movements, which appear to be as common as sleep movements.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
George John Romanes
Date:
16 Apr 1881
Source of text:
American Philosophical Society (Mss.B.D25.587)
Summary:

Discusses concept of intelligence in his Earthworms manuscript.

Remarks on GJR’s work on echinoderms.

Comments on Wilhelm Roux [Der Kampf der Theile im Organismus (1881)].

Discusses animal instincts, citing Fabre’s description of sand-wasps.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
John Lubbock, 4th baronet and 1st Baron Avebury
Date:
16 Apr [1881?]
Source of text:
The British Library (Add MS 49645: 97-8)
Summary:

Suggests that the pappus of Compositae, when lying on ground, may absorb water which may function in seed germination.

Contributor:
Darwin Correspondence Project
From:
Ernst L. Zeuschner
To:
Charles Robert Darwin
Date:
16 Apr 1881
Source of text:
DAR 184: 8
Summary:

Sends pamphlet showing that magnetism is the fundamental element by which all is created and maintained.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Alexander Stephen Wilson
Date:
16 Apr 1881
Source of text:
DAR 148: 372
Summary:

Obliged for extract from Gardeners’ Chronicle about Russian wheat. "It is a capital instance of one var. gradually beating out another."

Cannot remember where he put G. Henslow’s note [on the cotyledon of grass embryos].

Contributor:
Darwin Correspondence Project
From:
Alexander Agassiz
To:
Charles Robert Darwin
Date:
16 Apr 1881
Source of text:
G. R. Agassiz ed. 1913 , pp. 281–2
Summary:

Is mapping coral distribution on the Tortugas reef. His observations on the Florida peninsula suggest that it was built up from the debris of animal remains and was not elevated.

Contributor:
Darwin Correspondence Project
From:
George John Romanes
To:
Charles Robert Darwin
Date:
17 Apr 1881
Source of text:
E. D. Romanes 1896, p. 112
Summary:

Looks forward to reading CD’s Earthworms.

Agrees that habits of sand-wasp are determined by natural selection.

Experiment of exposing plants to flashing light gives uncertain result.

Contributor:
Darwin Correspondence Project