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From J. S. Burdon Sanderson   25 June 1873

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Summary

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

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

Author:  John Scott Burdon Sanderson, baronet
Addressee:  Charles Robert Darwin
Date:  25 June 1873
Classmark:  DAR 58.1: 116–19
Letter no:  DCP-LETT-8949

From J. S. Burdon Sanderson   28 July [1873]

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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.

Author:  John Scott Burdon Sanderson, baronet
Addressee:  Charles Robert Darwin
Date:  28 July [1873]
Classmark:  DAR 58.1: 28–9
Letter no:  DCP-LETT-8988

From J. S. Burdon Sanderson   13 August [1873]

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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].

Author:  John Scott Burdon Sanderson, baronet
Addressee:  Charles Robert Darwin
Date:  13 Aug [1873]
Classmark:  DAR 58.1: 34–7
Letter no:  DCP-LETT-9008
Document type
letter (3)
Author
Burdon Sanderson, J. S.[X]
Addressee
Date
1873
06 (1)
07 (1)
08 (1)
letter