From:
James Samuelson
To:
Sir John Herschel
Date:
[12 March 1864]
Source of text:
RAS:JH Archive 13/1.11; Reel 10
Summary:
Alterations to proofs of JH's plate [on sunspots].
Contributor:
John Herschel Project
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Alterations to proofs of JH's plate [on sunspots].