Search: Herschel, John in author 
Forbes, James David in correspondent 
Herschel, John in correspondent 
1840-1849 in date 
letter in document-type 
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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