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1870-1879 in date 
Darwin, Francis in author 
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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

DCP-LETT-12275F

From:
Francis Darwin
To:
Ernst Ludwig (Ernst) Krause
Date:
[29 Oct 1879]
Source of text:
The Huntington Library (HM 36218)
Summary:

Encloses a letter from CD to C.-F. Reinwald for EK to read, and if he approves, to send on.

Contributor:
Darwin Correspondence Project
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