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Herschel, John in correspondent 
Tyndall, John in correspondent 
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Herschel3510

From:
John Tyndall
To:
Sir John Herschel
Date:
[1866?]-2
Source of text:
RS:HS 17.399c
Summary:

Corrects misinformation about refraction and dispersion of mercury ethyl and mercury methyl.

Contributor:
John Herschel Project

Herschel3525

From:
John Tyndall
To:
Sir John Herschel
Date:
[11 July 1868]
Source of text:
RS:HS 17.402
Summary:

JT has suggested that JH's son [Alexander] be appointed to position in Royal School of Mines, but colleagues, unwisely, JT thinks, want someone more well-known.

Contributor:
John Herschel Project

Herschel3536

From:
John Tyndall
To:
Sir John Herschel
Date:
[1 December 1868]
Source of text:
RS:HS 17.405a (C: RI 551-2)
Summary:

Continues experiments with carbonic acid and electric light [see JT's 1868-11-30], hoping to 'explode' idea that atmosphere's polarization is due to reflection by air particles.

Contributor:
John Herschel Project

Herschel3564

From:
John Tyndall
To:
Sir John Herschel
Date:
3 December [1870?]
Source of text:
RS:HS 17.410 (C: RI 575)
Summary:

Thanks for suggestion-filled letter. Remarks on blue color of water.

Contributor:
John Herschel Project

Herschel3565

From:
John Tyndall
To:
Sir John Herschel
Date:
[17 September 1864]
Source of text:
RS:HS 17.394a (C: RI 528)
Summary:

Regrets 'stupidity' of Italian post office, which lost note sent to JH suggesting reprinting of passage from Treatise Astr. of 1833 on operations of sun in second edition of JT's book. Also wants to publish JT's 'extremely philosophical views' on muscle contraction.

Contributor:
John Herschel Project

Herschel3566

From:
John Tyndall
To:
Sir John Herschel
Date:
[2 March 1857]
Source of text:
RS:HS 17.385 (C: RI 503)
Summary:

Sends sketch of lecture on structure and motion of glaciers. Wants to conduct experiments on physical properties of ice, and applying polarized light. Beyond paper, is interested in cleavage of ice.

Contributor:
John Herschel Project

Herschel3568

From:
John Tyndall
To:
Sir John Herschel
Date:
[21 November 1861]
Source of text:
RS:HS 17.389 (C: RI 509-11)
Summary:

Gives account of observations on lunar radiation, including detailed description of experiments.

Contributor:
John Herschel Project

Herschel3569

From:
John Tyndall
To:
Sir John Herschel
Date:
28 April [1863?]
Source of text:
RS:HS 17.411 (C: RI 519)
Summary:

Thanks for a gift.

Contributor:
John Herschel Project

Herschel3571

From:
John Tyndall
To:
Sir John Herschel
Date:
[8 November 1851]
Source of text:
RS:HS 17.382 (C: RI 494)
Summary:

Sends memoirs on magnetism of crystalline bodies. Notes that remarks on atomic mechanism of Iceland spar contrast with JH's views expressed in JH's Light.

Contributor:
John Herschel Project

Herschel3572

From:
John Tyndall
To:
Sir John Herschel
Date:
[15 April 1862]
Source of text:
RS:HS 17.391 (C: RI 518)
Summary:

Finds JH's approval incredibly gratifying. Thanks for gift of rock salt. Is sending unscientific book; trusts JH's interests are broad enough to appreciate it.

Contributor:
John Herschel Project

Herschel3579

From:
John Tyndall
To:
Sir John Herschel
Date:
[24 July 1861]
Source of text:
RS:HS 17.388 (C: RI 507)
Summary:

Apologizes for not having seen JH's paper on spectra of colored flames and thus having overlooked JH's prior claims [see JH's 1861-7-21]. Will try to make amends.

Contributor:
John Herschel Project

Herschel3617

From:
John Tyndall
To:
Sir John Herschel
Date:
[14 November 1864]
Source of text:
RS:HS 17.395 (C: RI 531)
Summary:

Is not 'at liberty' to speak of experiments on change of refrangibility of 'extra-red' rays. Discusses other experiments on extra-red regions, having used various prisms but not obtaining JH's results.

Contributor:
John Herschel Project

Herschel3633

From:
John Tyndall
To:
Sir John Herschel
Date:
[30 July 1856]
Source of text:
RS:HS 17.384 (C: RI 501)
Summary:

Agrees with and asks permission to publish JH's letter in the Philosophical Magazine. Is going to Switzerland and Tyrol, where hopes to see phenomenon of glacial descent [see JH's 1856-7-31].

Contributor:
John Herschel Project

Herschel3634

From:
John Tyndall
To:
Sir John Herschel
Date:
[17 November 1864]
Source of text:
RS:HS 17.397 (C: RI 533)
Summary:

JT does not have 'luxury' of using sunshine; uses electric light. Perhaps this adds to inability to obtain heat spots [see JH's 1864-11-16].

Contributor:
John Herschel Project

Herschel3635

From:
John Tyndall
To:
Sir John Herschel
Date:
[30 November 1868]
Source of text:
RS:HS 17.404 (C: RI 550)
Summary:

Observations on subjecting carbonic acid to concentrated beam of an electric lamp. Records experimental result so far. Interested in ordinary dust particles under electric light.

Contributor:
John Herschel Project

Herschel3644

From:
John Tyndall
To:
Sir John Herschel
Date:
[16 March 1863]
Source of text:
RS:HS 17.393a (C: RI 523)
Summary:

Remarks on upcoming lecture of JH's son [Alexander], and on glacial movement.

Contributor:
John Herschel Project

Herschel3645

From:
John Tyndall
To:
Sir John Herschel
Date:
[8 November 1851]
Source of text:
RS:HS 17.381 (C: RI 493)
Summary:

Letter in application for Professorship of Experimental Philosophy and Chemistry at University College, Sydney.

Contributor:
John Herschel Project

Herschel3647

From:
John Tyndall
To:
Sir John Herschel
Date:
[23 November 1861]
Source of text:
RS:HS 17.390a (C: 514)
Summary:

Clarifies that JT does not believe moon radiates cold itself, but effects are 'as if' it did. Relates this to atmosphere.

Contributor:
John Herschel Project
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