From:
Sir John Herschel
To:
Warren de La Rue
Date:
[27 August 1859]
Source of text:
RS:HS 23.272
Summary:
Requests information about specula for telescopes, especially silvered glass ones.
Contributor:
John Herschel Project
Showing 1–2 of 2 items
Requests information about specula for telescopes, especially silvered glass ones.
Further questions about the physical optics of telescopes [see JH's 1859-8-27].