From:
Sir John Herschel
To:
William Lassell
Date:
[23 September 1859]
Source of text:
RS:HS 23.278 (extract 1p Harvard: Houghton AAH 67m-67 {48})
Summary:
Comments on WL's information on telescope construction, and adds some of JH's own experience.
Contributor:
John Herschel Project