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Cooper, Edward Joshua in correspondent 
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1840-1849::1848 in date 
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From:
Edward Joshua Cooper
To:
Sir John Herschel
Date:
[29 April 1848]
Source of text:
RS:HS 5.289
Summary:

Andrew Graham has found another planet [Metis]. Gives readings made with the meridian circle of latest observations. Returns to Ireland soon.

Contributor:
John Herschel Project
From:
Edward Joshua Cooper
To:
Sir John Herschel
Date:
[10 May 1848]
Source of text:
RS:HS 5.290
Summary:

'Thetis' has yet to be discovered. Discusses names for new planet.

Contributor:
John Herschel Project