From:
Alvan Clark
To:
Sir John Herschel
Date:
[28 May 1852]
Source of text:
RS:HS 5.341
Summary:
Has a copy of JH's book on astronomy, which AC values. Has been carrying out experiments with the grinding of object glasses. Remarks on various points relating to telescopes. Intends to search for double stars.
Contributor:
John Herschel Project