From:
Sir John Herschel
To:
George Biddell Airy
Date:
[29 November 1839]
Source of text:
RGO 6.368.629 (ACCS RS:HS 25.5.19)
Summary:
About astronomical matters, such as parallax and variable stars.
Contributor:
John Herschel Project
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About astronomical matters, such as parallax and variable stars.