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

No summary available.

Contributor:
Tyndall Project
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
From:
John Frederick William Herschel
To:
John Tyndall
Date:
Jan. 5/63
Source of text:
MS JT/1/H/99; MS JT/1/TYP/2/521-21a, RI
Summary:

No summary available.

Contributor:
Tyndall Project
From:
Sir John Herschel
To:
John Tyndall
Date:
[5 January 1863]
Source of text:
RS:HS 17.392b (C: 24.4; C: RI 521)
Summary:

Likes JT's explanation of sky's blue color. Has difficulty with JT's explanation of polarization of skylight. Comments on absorptive powers of vapor and liquid.

Contributor:
John Herschel Project
From:
John Frederick William Herschel
To:
John Tyndall
Date:
Mar 15/63
Source of text:
MS JT/1/H/100; MS JT/1/TYP/2/533; HS/24/14, RI; RS
Summary:

No summary available.

Contributor:
Tyndall Project
From:
Sir John Herschel
To:
John Tyndall
Date:
[15 March 1863]
Source of text:
RS:HS 24.14 (C: RI 522)
Summary:

Thanks for lectures on heat motion theory and radiation through earth's atmosphere, and for brochure on 'conformation' of the Alps. Asks about upcoming lecture of JH's son [Alexander].

Contributor:
John Herschel Project
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
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
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
From:
John Herschel
To:
John Tyndall
Date:
June 18 1864
Source of text:
HS 393b; MS JT/1/H/101; MS JT/1/TYP/2/524-7, RS; RI
Summary:

No summary available.

Contributor:
Tyndall Project
From:
Sir John Herschel
To:
John Tyndall
Date:
[18 July 1864]
Source of text:
RS:HS 17.393b (C: 24.48; C: RI 524-7)
Summary:

Thanks for and comments on papers on scientific history and molecular physics, particularly on a magnetic experiment and on dynamical efficiency of coal relative to motion theory of light and heat. Comments on nature of heat, 'vis viva.' Deplores laxity with which physicists use and confuse terms 'force,' 'motion,' and 'energy.'

Contributor:
John Herschel Project
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
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
From:
John Herschel
To:
John Tyndall
Date:
Nov. 13 1864
Source of text:
HS 394b; MS JT/1/TYP/2/529-30, RS; RI
Summary:

No summary available.

Contributor:
Tyndall Project
From:
Sir John Herschel
To:
John Tyndall
Date:
[13 November 1864]
Source of text:
RI 305 (C: 529-30); draft 4pp RS:HS 17.394b (C: 24.66)
Summary:

Thanks for and comments on paper on luminous and obscure radiation, particularly on extra spectral rays, incandescence of platinum, and experiment using transcalescence of iodine.

Contributor:
John Herschel Project
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
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
From:
John Herschel
To:
John Tyndall
Date:
Nov. 16/64
Source of text:
HS 396; MS JT/1/H/102; MS JT/1/TYP/2/532, RS; RI
Summary:

No summary available.

Contributor:
Tyndall Project
From:
Sir John Herschel
To:
John Tyndall
Date:
[16 November 1864]
Source of text:
RS:HS 17.396 (C: RI 532 & RS:HS 24.68))
Summary:

Surprised that JT cannot obtain heat spots [see JT's 1864-11-14]. Describes glasses and lenses used.

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

No summary available.

Contributor:
Tyndall Project