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DCP-LETT-8949

From:
John Scott Burdon Sanderson, 1st baronet
To:
Charles Robert Darwin
Date:
25 June 1873
Source of text:
DAR 58.1: 116–19
Summary:

Informs CD of the effects of certain salts and other chemicals on animals.

Comments on CD’s results with Drosera. Suggests some experiments.

Contributor:
Darwin Correspondence Project
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DCP-LETT-8988

From:
John Scott Burdon Sanderson, 1st baronet
To:
Charles Robert Darwin
Date:
28 July [1873]
Source of text:
DAR 58.1: 28–9
Summary:

A hasty answer to CD’s letter [8987] of 25 July. Mentions Dr Osler’s observations on behaviour of colourless blood corpuscles in solutions of sodium and potassium salts of same strength.

Contributor:
Darwin Correspondence Project
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DCP-LETT-9008

From:
John Scott Burdon Sanderson, 1st baronet
To:
Charles Robert Darwin
Date:
13 Aug [1873]
Source of text:
DAR 58.1: 34–7
Summary:

Answers CD’s questions of 25 July [8987] about temperatures at which cold-blooded animals are killed.

Doubts heat rigor was induced in Drosera. Gives his view of the relation of excitability to increase in temperature.

Suggests experiment to show that electrical changes in plant are the same as in animal muscle and nerve [see Insectivorous plants, p. 318].

Contributor:
Darwin Correspondence Project
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