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DCP-LETT-11628

From:
Francis Darwin
To:
Charles Robert Darwin
Date:
24 and 25 July 1878
Source of text:
DAR 162: 60, DAR 209.6: 198
Summary:

Notes Julius Sachs’s opinion on the heliotropism of moulds: he can see no use in the response.

C. E. Stahl is working on swarm spores which can be made both helio- and apheliotropic.

Sachs has told him that some ferns sleep, and he suspects that some grasses may move.

Sachs also feels they may be working at bloom from a wrong point of view and suggests leaves may need to keep dry in order to keep their stomata open.

Contributor:
Darwin Correspondence Project

DCP-LETT-11638

From:
Francis Darwin
To:
Charles Robert Darwin
Date:
[before 3 Aug 1878]
Source of text:
DAR 209.8: 152
Summary:

Sachs jumps to the conclusion twiners and tendrils are similar from the Menispermum that twined without a stick. Akebia grows down a stick; not only the free end is involved.

Sleeping plants.

Contributor:
Darwin Correspondence Project
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DCP-LETT-11632

From:
Francis Darwin
To:
Charles Robert Darwin
Date:
[4–7 Aug 1878]
Source of text:
DAR 162: 57
Summary:

Experiments on effects of removing "bloom" from leaves and fruit.

Contributor:
Darwin Correspondence Project

DCP-LETT-11672

From:
Francis Darwin
To:
Unidentified
Date:
23 Aug 1878
Source of text:
Yale University: Beinecke Rare Book and Manuscript Library (GEN MSS MISC Group 104 F-1)
Summary:

Writes for CD. Thanks correspondent for curious case of inheritance, which CD cannot use as he is working in different directions.

Contributor:
Darwin Correspondence Project

DCP-LETT-11690F

From:
Francis Darwin
To:
Charles Robert Darwin
Date:
[12 Sept 1878]
Source of text:
DAR 274.1: 44
Summary:

He has been working hard at Kew for two days.

Contributor:
Darwin Correspondence Project

DCP-LETT-11754F

From:
Francis Darwin
To:
Charles Robert Darwin
Date:
[before 22 Nov 1878]
Source of text:
DAR 274.1: 42
Summary:

Horse chestnut roots have not acted at all well.

Contributor:
Darwin Correspondence Project

DCP-LETT-11755F

From:
Francis Darwin
To:
Charles Robert Darwin
Date:
[23 Nov 1878]
Source of text:
DAR 274.1: 43
Summary:

Many thnks for the pelargonium letter.

Contributor:
Darwin Correspondence Project

DCP-LETT-11768H

From:
Francis Darwin
To:
Charles Robert Darwin
Date:
[25–7 Nov 1878]
Source of text:
DAR 274.1: 41
Summary:

He has had no success with horse or Spanish chestnuts.

Contributor:
Darwin Correspondence Project

DCP-LETT-11883F

From:
Francis Darwin
To:
Charles Robert Darwin
Date:
[c. 25 Feb 1879]
Source of text:
DAR 274.1: 60
Summary:

Directs CD where to find tools in his room. Has been looking at agave and aloe flowers. Thanks family for their letters.

Contributor:
Darwin Correspondence Project

DCP-LETT-11913F

From:
Francis Darwin
To:
Charles Robert Darwin
Date:
3 Mar [1879]
Source of text:
DAR 274.1: 59
Summary:

Astonished at circular and will risk revolutions to invest. Describes Blidah, Algeria.

Contributor:
Darwin Correspondence Project

DCP-LETT-12067F

From:
Francis Darwin
To:
Charles Robert Darwin
Date:
29 May 1879
Source of text:
DAR 274.1: 54
Summary:

Fungus is an Aecidium. Porliera, Anthuriums and Aroids will hopefully sprout if weather gets hot. Sachs has changed his ideas about the cause of heliotropism. Describes men he is sharing a lab with.

Contributor:
Darwin Correspondence Project

DCP-LETT-12075

From:
Francis Darwin
To:
Charles Robert Darwin
Date:
[after 2 June 1879]
Source of text:
DAR 209.5: 230–2
Summary:

Geotropism.

Experimenting on Porlieria in damp and dry earth.

Hermann Müller has been ridiculed for teaching children "in the beginning was Carbon".

Will ask about Ernst Krause.

Contributor:
Darwin Correspondence Project
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DCP-LETT-12111F

From:
Francis Darwin
To:
Charles Robert Darwin
Date:
[after 16 June 1879]
Source of text:
DAR 274.1: 53
Summary:

Reports on roots and climbing plants experiments he is performing in Sachs’ laboratory. Orchids with air roots have come. Goebel says proshelic better than helic.

Contributor:
Darwin Correspondence Project

DCP-LETT-12126F

From:
Francis Darwin
To:
Charles Robert Darwin
Date:
[before 26 June 1879]
Source of text:
DAR 274.1: 55
Summary:

Discusses results of geotropism experiment. Has started some heliotropic caustic experiments on mustard roots. Has trouble making marks.

Contributor:
Darwin Correspondence Project

DCP-LETT-12128F

From:
Francis Darwin
To:
Emma Wedgwood; Emma Darwin
Date:
30 June 1879
Source of text:
DAR 274.1: 49
Summary:

Last night had tremendous thunderstorm. Will ask Goebel about proshelismus. Describes experiments on beans. Please send Bessy’s address. Has got to know nice Englishman named Purdy and his wife. Bathes nearly every night with the Finlander.

Contributor:
Darwin Correspondence Project

DCP-LETT-12134

From:
Francis Darwin
To:
Charles Robert Darwin
Date:
4 July 1879
Source of text:
DAR 209.3: 334
Summary:

Heliotropism nomenclature. Apheliotropic mustard roots grow more quickly in dark. Measures growth with microscope as S. H. Vines did in mould. Studying air roots.

FD’s and Stahl’s negative opinion of Sachs.

Contributor:
Darwin Correspondence Project

DCP-LETT-12296F

From:
Francis Darwin
To:
Charles Robert Darwin
Date:
[6 July 1879]
Source of text:
DAR 274.1: 61
Summary:

Describes bean experiments. Will tell Emma Darwin to tell Elizabeth Darwin that he has written to the Riffel.

Contributor:
Darwin Correspondence Project

DCP-LETT-12142

From:
Francis Darwin
To:
Charles Robert Darwin
Date:
9 July 1879
Source of text:
DAR 162: 61
Summary:

Pressure paralyses the streaming of protoplasm in the hairs of Tradescantia.

Contributor:
Darwin Correspondence Project

DCP-LETT-12177F

From:
Francis Darwin
To:
Charles Robert Darwin
Date:
[before 31 July 1879]
Source of text:
DAR 274.1: 56
Summary:

Discusses Müller-Thurgau’s work on heliotropism. Will start on Thursday for Heidelberg and Strassburg.

Contributor:
Darwin Correspondence Project

DCP-LETT-12268H

From:
Francis Darwin
To:
Ernst Ludwig (Ernst) Krause
Date:
23 Oct 1879
Source of text:
The Huntington Library (HM 36217)
Summary:

CD thanks Krause for the errata.

CD is sorry to hear that Krause’s part will not appear in the French edition, and cannot believe that C.-F. Reinwald would be influenced by antagonism to the Germans. Reinwald always gives CD a small percentage on sales, and CD had intended to pass it on to EK.

Contributor:
Darwin Correspondence Project
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