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Herschel, John in correspondent 
Tyndall, John in correspondent 
1860-1869 in date 
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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 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
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
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:
[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
From:
John Tyndall
To:
John Frederick William Herschel
Date:
24th July 1861
Source of text:
HS 17.388, RS
Summary:

No summary available.

Contributor:
Tyndall Project
From:
John Tyndall
To:
John Frederick William Herschel
Date:
Undated
Source of text:
22 (1861), pp. 377-8, Phil. Mag.
Summary:

No summary available.

Contributor:
Tyndall Project
From:
John Tyndall
To:
John Frederick William Herschel
Date:
21st Nov. 1861
Source of text:
HS 17.389; MS JT/1/TYP/2/509-511, RS; RI
Summary:

No summary available.

Contributor:
Tyndall Project
From:
John Tyndall
To:
John Frederick William Herschel
Date:
23rd Nov. 1861
Source of text:
HS 17.390, RS
Summary:

No summary available.

Contributor:
Tyndall Project
From:
John Tyndall
To:
John Frederick William Herschel
Date:
15th April 1862
Source of text:
HS 17.391, RS
Summary:

No summary available.

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

No summary available.

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

No summary available.

Contributor:
Tyndall Project