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Arago, D. François J. in correspondent 
John Herschel Project in contributor 
1840-1849 in date 
Herschel, John in author 
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From:
Sir John Herschel
To:
D. François J. Arago
Date:
1848
Source of text:
RS:HS 1.366 (C: RS:HS 25.13.9)
Summary:

Glad to lerarn of the Academy's interest in his Cape Observations. Regarding his father. Comments on the 'Equalizations of stars.' [Written on an experimental leaf photographic plate.]

Contributor:
John Herschel Project