Search: 1870-1879 in date 
Darwin, C. R. in correspondent 
Tyndall, John in correspondent 
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DCP-LETT-11771

From:
Charles Robert Darwin
To:
John Tyndall
Date:
4 Dec [1878]
Source of text:
DAR 261.8: 27 (EH 88205965)
Summary:

Has observed, perhaps erroneously, that certain plants were excited to movement by a prolonged high note on the bassoon. Would now like to try a siren and asks JT to bring one from the Royal Institution.

Contributor:
Darwin Correspondence Project

DCP-LETT-11774

From:
John Tyndall
To:
Charles Robert Darwin
Date:
5 Dec 1878
Source of text:
DAR 106: C22
Summary:

Will provide the siren.

Contributor:
Darwin Correspondence Project
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DCP-LETT-11802

From:
Charles Robert Darwin
To:
John Tyndall
Date:
22 Dec [1878]
Source of text:
DAR 261.8: 28 (EH 88205966)
Summary:

Returns the siren; the plants "ill luck to them, are not sensitive to aerial vibrations". Is ashamed of his blunder.

Contributor:
Darwin Correspondence Project

DCP-LETT-11882

From:
Charles Robert Darwin
To:
John Tyndall
Date:
14 Feb 1879
Source of text:
DAR 261.8: 30 (EH 88205968)
Summary:

Has been asked to contribute to W. K. Clifford memorial fund. Asks JT’s advice on how much the committee hopes to raise. Would like to give handsomely but feels bound "with such a lot of children, not to be extravagant".

Contributor:
Darwin Correspondence Project

DCP-LETT-11886

From:
Charles Robert Darwin
To:
John Tyndall
Date:
17 Feb [1879]
Source of text:
DAR 261.8: 31 (EH 88205969)
Summary:

Thanks JT for his information. Sends £50 to the W. K. Clifford memorial fund.

Contributor:
Darwin Correspondence Project
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