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Herschel, John in correspondent 
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From:
Sir John Herschel
To:
James David Forbes
Date:
[5 August 1832]
Source of text:
St. Andrews 123 (C: RS:HS 25.3.8)
Summary:

Suggests that JF use his instruments to compare the force of solar radiation at high and low elevations. Delineates possible methods for this experimentation, and lists results of similar experiments. Includes further information on the actinometer.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
James David Forbes
Date:
[20 February 1833]
Source of text:
St. Andrews 17 (C: RS:HS 21.129)
Summary:

Congratulates JF on obtaining, after some difficulty, the Chair of Natural Philosophy at Edinburgh. Accepts offer to discuss meteorology with JF's relation Leslie Melville[?], and hopes to mention his actinometer.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
James David Forbes
Date:
[30 May 1835]
Source of text:
St. Andrews 16 (C: RS:HS 25.4.11)
Summary:

Discusses reduction of barometric observations. Praises the Cape's climate.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
James David Forbes
Date:
[16 October 1833]
Source of text:
St. Andrews 48 (C: RS:HS 21.151)
Summary:

Wishes JF well in [Edinburgh] and leaves addresses where JH may be reached [at the Cape].

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
James David Forbes
Date:
[13 March 1840]
Source of text:
St. Andrews 13 (C: RS:HS 22.44)
Summary:

On the preparation of paper to exhibit a thermal spectrum.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
James David Forbes
Date:
[10 June 1845]
Source of text:
St. Andrews 73 (C: RS:HS 22.241)
Summary:

Hopes to add JF's name to B.A.A.S. Meteorological Committee, and to see JF at Cambridge meeting of the committee.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
James David Forbes
Date:
[25 September 1837]
Source of text:
St. Andrews 40 (C: RS:HS 21.229)
Summary:

Thanks JF for papers and requests copies of those JH has borrowed; comments on JH's observations on solar heat, light, and lines in spectra.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
James David Forbes
Date:
[27 November 1849]
Source of text:
Edinburgh Royal Society
Summary:

[Responding to JF's 1849-11-23], JH cautiously discusses various considerations bearing on the idea of sending an astronomer and a large reflecting telescope to the Cape.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
James David Forbes
Date:
[19 January 1843]
Source of text:
RS:HS 7.304 & 22.146
Summary:

Protesting about the refusal of the Royal Society of Edinburgh to publish Thomas Brisbane's magnetic observations; hopes it will be reconsidered. Thinks JF's theory on glaciers has good points, but comments on some of its shortcomings.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
James David Forbes
Date:
[22 June 1847]
Source of text:
RS:HS 22.320
Summary:

Asks for details of several actinometers.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
James David Forbes
Date:
[26] November 1849
Source of text:
RS:HS 7.312 & 23.75
Summary:

Agrees that it would be desirable to make further observations at the Cape, but foresees difficulties, especially liaison with the Astronomer Royal at the Cape.

Contributor:
John Herschel Project