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Tyndall, John in correspondent 
Herschel, John in addressee 
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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

Tyndall1958

From:
John Tyndall
To:
John Frederick William Herschel
Date:
4th. Jan
Source of text:
HS/392a, RS
Summary:

No summary available.

Contributor:
Tyndall Project

Herschel3252

From:
John Tyndall
To:
Sir John Herschel
Date:
[4 January 1863]
Source of text:
RS:HS 17.392a (C: RI 520)
Summary:

Asks permission to print extract of JH's letter on heat spots of spectrum of rock salt sample. Hopes JH's son [Alexander] will speak at Royal Institution; JT would help with illustration. Wonders how blue color of water relates to sky color and polarization.

Contributor:
John Herschel Project

Tyndall1983

From:
John Tyndall
To:
John Frederick William Herschel
Date:
16th March 1863
Source of text:
MS JT/1/TYP/2/523, RI
Summary:

No summary available.

Contributor:
Tyndall 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

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

Tyndall2140

From:
John Tyndall
To:
John Frederick William Herschel
Date:
17th Sep. 1864.
Source of text:
HS 394a; MS JT/1/TYP/2/528, RS; RI
Summary:

No summary available.

Contributor:
Tyndall 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

Tyndall2177

From:
John Tyndall
To:
John Herschel
Date:
14th Nov. 1864
Source of text:
HS 395; MS JT/1/TYP/2/531, RS; RI
Summary:

No summary available.

Contributor:
Tyndall 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

Tyndall2180

From:
John Tyndall
To:
John Herschel
Date:
17th Nov. 1864
Source of text:
HS 397, RS; RI
Summary:

No summary available.

Contributor:
Tyndall 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

Tyndall2184

From:
John Tyndall
To:
John Herschel
Date:
18th Nov. 1864
Source of text:
HS 398a, RS
Summary:

No summary available.

Contributor:
Tyndall Project

Herschel3327

From:
John Tyndall
To:
Sir John Herschel
Date:
[18 November 1864]
Source of text:
RS:HS 17.398a (C: RI 534)
Summary:

Asks JH to be a shareholder in venture to publish new weekly scientific journal.

Contributor:
John Herschel Project

Herschel3406

From:
John Tyndall
To:
Sir John Herschel
Date:
[7 February 1865]
Source of text:
RS:HS 17.399a (C: RI 536)
Summary:

Sends copy of JT's '3rd Memoir,' along with specimens of liquid mercury ethyl and mercury methyl from discoverers Edward Frankland and B. F. Duppa.

Contributor:
John Herschel Project

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

Herschel3191

From:
John Tyndall
To:
Sir John Herschel
Date:
[26 May 1866]
Source of text:
RS:HS 17.400 (C: RI 539)
Summary:

Comments on excellence of the lecture at the Royal Institution of JH's son [Alexander].

Contributor:
John Herschel Project

Herschel3178

From:
John Tyndall
To:
Sir John Herschel
Date:
[30 October 1867]
Source of text:
RS:HS 17.401 (C: RI 541)
Summary:

Asks whether Michael Faraday's work with glass resulted in improved manufacturing or if rather its main scientific value was in discovery of diamagnetism.

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

Herschel3152

From:
John Tyndall
To:
Sir John Herschel
Date:
[27 November 1868]
Source of text:
RS:HS 17.403
Summary:

Is studying vesicles. JH's son [Alexander] may yet get Royal School of Mines appointment.

Contributor:
John Herschel Project
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