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Airy, George Biddell in correspondent 
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From:
George Biddell Airy
To:
James South
Date:
[13 February 1824]
Source of text:
RS:HS 1.21
Summary:

Concerning calculations for the parallax of Mars.

Contributor:
John Herschel Project
From:
George Biddell Airy
To:
Sir John Herschel
Date:
[13 February 1824]
Source of text:
RS:HS 1.20
Summary:

Description of theory of a telescope, though not practical yet.

Contributor:
John Herschel Project