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Tyndall, John in correspondent 
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From:
Charles Robert Darwin
To:
John Tyndall
Date:
20 Oct [1875]
Source of text:
Rensselaer Libraries, Rensselaer Polytechnic Institute (Gerald and Sue Friedman manuscript collection MC 72 Box 1)
Summary:

JT’s tube [of boiled infusion] dated 16 Oct was clear on 19th; on the 20th it was muddy and contained many bacteria in living movement.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
John Tyndall
Date:
25 Oct [1875]
Source of text:
DAR 261.8: 23 (EH 88205961)
Summary:

Asks JT to send the tubes [of boiled infusions]. Frank Darwin will do his best. Asks for full instructions.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
John Tyndall
Date:
4 Feb 1876
Source of text:
DAR 261.8: 24 (EH 88205962)
Summary:

Sends congratulations and a teapot on the occasion of JT’s engagement.

Is pleased JT is not giving up on the spontaneous generation question. Feels strongly that subject will not be clear until it is understood how J. S. Burdon Sanderson and others succeeded in getting bacteria in infusions they had boiled for a long time.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
John Tyndall
Date:
5 June [1876]
Source of text:
DAR 261.8: 25 (EH 88205963)
Summary:

CD has quite given up the marine theory [of Glen Roy] and has accepted glacier lakes. "Nothing makes me gnash my teeth so much as that confounded paper of mine." It is a lesson "never in science to infer one explanation is right because no other one seems possible".

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
John Tyndall
Date:
20 Oct 1877
Source of text:
DAR 261.8: 26 (EH 88205964)
Summary:

Has read JT’s address ["Science and man", The Times, 2 October 1877, p. 8]. What JT says about CD honours and pleases him. JT’s short character of Faraday is beautiful.

Contributor:
Darwin Correspondence Project
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
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
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
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
From:
Charles Robert Darwin
To:
John Tyndall
Date:
3 Mar [1878]
Source of text:
DAR 261.8: 29 (EH 88205967)
Summary:

Sends W. K. Clifford subscription.

Has been unwell and hardly able to do anything. Has seen Andrew Clark.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
John Tyndall
Date:
13 Feb 1882
Source of text:
DAR 261.8: 32 (EH 88205970)
Summary:

Asks JT to support Albert Dicey for the Athenaeum.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
John Tyndall
Date:
4 Feb [1857]
Source of text:
DAR 261.8: 2 (EH 88205940)
Summary:

CD is "as ignorant of mechanics as a pig", but glaciers have interested him greatly. Hopes to hear that JT’s experiments with ice will explain the freezing together of ice below the freezing point.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
John Tyndall
Date:
23 Feb [1861]
Source of text:
DAR 261.8: 3 (EH 88205941)
Summary:

Sends correspondence between Dr Erasmus Darwin and Josiah Wedgwood I [of Etruria] on glaciers.

Also a pamphlet [Asa Gray, Natural selection not inconsistent with natural theology (1861)] containing "the best account" of the Origin.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
John Tyndall
Date:
24 July [1861]
Source of text:
DAR 261.8: 4 (EH 88205942)
Summary:

Has been idling and enjoying the scenery.

"At dinner we were all sticking bits of ice together by their points, marvelling at the phenomenon and talking of you."

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
John Tyndall
Date:
7 Oct 1868
Source of text:
DAR 261.8: 5 (EH: 88205943)
Summary:

Asks JT to distribute some circulars about the work of Gustavus Hinrichs of Iowa, whom CD wishes to help.

Admires JT’s Norwich address [to Mathematics and Physics Section, BAAS meeting, Rep. BAAS 38: 1–6] and his Fortnightly Review paper on scientific discovery [7 (1867): 645–60].

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
John Tyndall
Date:
20 Oct 1868
Source of text:
DAR 261.8: 6 (EH: 88205944)
Summary:

Invites JT to come to Down with the Asa Grays and Hookers.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
John Tyndall
Date:
8 Sept 1870
Source of text:
The Michael Faraday Museum at the Royal Institution of Great Britain, London, reference RI MS JT/2/10/458, spine title: Journal V111A 1858–71
Summary:

CD finds JT’s discourse "grand and most interesting" [On the scientific use of the imagination (1870)]. Flattered by what JT says about him.

He is "a rash man to say a good word for Pangenesis for it has hardly a friend among naturalists".

CD is much struck with what JT says about "pondering" and delighted by his "as if" argument.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
John Tyndall
Date:
[27 Feb 1871]
Source of text:
DAR 261.8: 7 (EH 88205945)
Summary:

Thinks JT’s discovery of a glycerine respirator is an interesting practical discovery. CD has been wondering about the hairs in our nostrils, but doubts that JT has explained their function, since there are hardly enough.

Will ask W. Ogle to observe hairs in nostrils of different races.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
John Tyndall
Date:
1 Mar [1871]
Source of text:
DAR 261.8: 8 (EH 88205946)
Summary:

Ogle will keep JT’s suggestion in mind in observing less hairy races of man and the lower animals.

Asks JT whether he can help Ogle on a troublesome point on the colour of tissues with olfactory nerves, and the relation of colour to the absorption of odours. Does JT’s respirator deprive odorous substances of their smell?

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
John Tyndall
Date:
1 Mar [1871]
Source of text:
DAR 261.8: 9 (EH 88205947)
Summary:

Ogle is unacquainted with JT; would be proud and pleased to call on him. CD likes what little he has seen of him.

Contributor:
Darwin Correspondence Project